@Scarlet: We have the saying pony *insert gait here*, when a horse/pony has very short quick stride, be it canter or trot. So that's probably what you have problem with, you've more used to, hence comfortable with, horse strides that are generally bigger(sometimes slower) than pony strides, hence easier to sit. Ponies tend to be fast on their moves and 'slippery' since they are smaller, and if you feel very out of saddle due your height, then that might add on to the issue. I might try out longer stirrups(it's no crime to have your leg go under the belly line), as personally with shorter ones, while yes they offer more support, they also make me easily loose the contact to the saddle. Basically all else I can think off is just that you need to ride more ponies/short strided horses, to get used to it. If you feel really badly out of rythm, I find it usefull to two point for little bit to kinda let the horse do it's thing as well in peace while you figure things out, and after bit sit back down and see if it's any better. With Heta though if there's no improvement, I just do new transitions, as most of the time I'm not even sure she has clean canter when I feel off... : P
@Measuring blankets: The other way to get measure for correct size, is from withers along the back to the top of the tail. But I think that's more common way to measure in Europe, and even then more common when used centimeters to tell the rug sizes.
@Small horses/ponies vs. tall people: *snickers* Exactly why I ride Icelandics(though I'm not particularry tall nor heavy). XD Can't really out grow them(which is pretty sweet for younger people who are into showing), unless you get really obease. Then it's not really fair for the horse, especially if you additionally have poor riding skills... But othervise it's mainly preferance, so just don't like riding pony sized horses. Though among people riding Icelandics, I've noticed that taller people do favor larger horses. Plus the general average size of the breed has gone up, in past 10-20 years I think. Like when I started out, horse over 140cm was rarer sight and considered large, but these days most of the breeding stallions that we have over here are over 140cm, many go over 145cm too.
@Mustangs: Probably easiest if you google out if there's Haflinger assosiation or something in Canada, since they most likely have list of breeders and possibly horses that are for sale. I'd imagine it's not common breed in Canada how ever, so there probably ain't that many...
@Enchanted: I think Heta has more fluffier white hairs on her head than brown ones. XD Othervise she's only light/meadium fluffy, for an Icelandic that is. lol
I haven't really heard any recent news of Tý lately... So I suppose he's doing good, at least hasn't injured himself lately. Last time I heard of him, he was in the same group with the new arrivals. The 'needs fattening up'-group. XD I'm kinda hoping for some snowy pics soon, since one other person asked for pics of the boys earlier, but they said the horses are so muddy and wet it's no go(at least if you want them to look nice), and we have to wait until it snows/freezes to get nicer pics. And now that we got snow, so... lol Impatient horse owner here.
As for sensitizing Willow. With caution, as she is a baby(do too much and they loose interest and don't want to do anything=get lazy) and a donkey(which I heard don't exactly think like horses, and are known to be stubborn and can be forced to do even less than horses), you probably need to be bit more drastic and don't stop until you get her to react and then reward. I usually have to do that once with Heta to get her listening and then she starts listening the smaller cues as well. Though I rarely use whip as main tool... Just rope and body language most of the time. The times I do use a whip, she has over reacted to it in the past, but while back she had very little reaction to it and I might dare to say grow even duller to it towards the end of the session... So I find it bit useless, but sometimes I get extra umph to myself if I have in hand(like Heta takes me bit more serious), though using it rarely gets results if I don't match my body language to it...
Adding little plastic to the whip might not be such bad idea, if she's really not responding to the whip at all. And keeping in mind she's still a baby, does she really understand what the whips supposed to mean?
(has a feeling none of these replies were actually usefull)_______________
Snow, snow, snow, so much snow. <3 It really started to snow earlier this week already and today it snowed some more. So we indeed got white christmas.

Which is awsome, buuuut once again I'm missing all the snowy horse fun this year. :c I accidentally moved my shoulder to wrong direction yesterday and geez it did not feel good. I'm not super sure if the bone is even at correct place next to my shoulder joint, as I can easily feel the end kinda stick out... >_< But when I got the staples out on Monday(feels sooooo much nicer now), the nurse didn't at least say the bone was wrong when I asked. Though she said nothing of it really, other than it still has some swelling which makes it hard to really feel it out right. : P Blah, means I still have to wait until 8th to get proper answers...
But enough about the whiny boring bone stuff, which is apparently my life these days. : P
Tý's place is having sort of one year anniversary party on the 6th(basically they offer cake+coffee there for certain hours), which I would reeeeaally like to go, not to mention I'd want to see Tý(can't remember when I saw him last ;_; ), but... I'm not sure if I can drive, and testing that out in winter with 2 hour drive doesn't sound super smart. >_> I mean techinically it doesn't feel like it would be super impossible, as I can kinda type already and the sling should come of the 8th anyway. Not to mention the road is pretty straight(it's boring to drive really), so the only need for two hands is minimal, but the snow/ice factor kinda makes it a 2 hand job. Meh, I think I have to whine to my mom, see if she's willing to drive me(or like combine visiting Heta and Tý the same day, since Heta's kinda on the way to Tý's place)... Or maybe if one of my friends would feel kind enough(doubt it).
Yes, I'm slowly starting to go crazy here, cooped up inside as putting on proper clothes is hard and annoying. Not to mention the shoulder still doesn't quite like it if I walk around too much.