To be honest, this is what Carolina is doing - she doesn't collect to engage her back or rear end. I can get her to collect at the halt and she will move forward but then she will shake her head and rear. She rides fine if I don't ask her to collect. My trainer wants to try a running martingale on her as well.
I'm currently riding her in a Korsteel happy mouth D-ring snaffle. My trainer suggested that she's trying to evade the bit. She has recently been floated and all her tack fits.
I'm not sure what to do. This is the 3rd trainer that wants to go a bit higher in bits with Carolina, even though now I'm riding her every 2nd or 3rd day.
She had me ride her with draw reins and after her first little explosion she rode like a dream but I can't imagine riding her in draw reins all the time.