As I've posted elsewhere, my friend Amy is bringing a horse called Megan back into work. Megan was broken, but has taken time off to have a foal. Said foal is now a yearling and Amy is getting Megan used to being ridden again. Please note that Megan is not our horse so when it comes to new tack and so on, we would need to discuss this with her owner.
Megan is in a full-cheek French link snaffle, of average thickness. She's very, very responsive to contact. I took some videos of Amy's riding, and we've got a few people to take a look at them. Amy is not being heavy-handed, but Megan does appear to be over-reacting to the bit. She's chewing it, but also pushing against it with her tongue. She's not bracing against the bit.
I've checked the bit, it's definitely a French link and not a Dr Bristol. Tonight we're going to check again that it's not too wide for her mouth, and that it is positioned right in her mouth, not too high or too low. She's easy enough to bridle, opens her mouth for the bit without any fussing. Likes to lift her head for Amy, but knows it's useless with me as I'm taller and can still reach if she puts her nose in the air xD
We're not particularly looking for answers as to what to do, as we're going to have a chat with Megan's owner tonight and investigate the situation thoroughly, but I am wondering what everyone's thoughts are and if you have any ideas for things we could look at.
If the bit is too wide, what effects could that have? Is there a possibility that the French link is still too strong for her mouth? Is it likely that this is just a case of her needing to get used to having contact? Any suggestions for things we could look at or do?
Thank you, knowledgeable horseypeople :)