So my horse and I have been doing barrels for about year. My horse has been trained for a veryyyy lonnggg timee. She was amazing last summer but all of a sudden after we haven't done barrels in a couple weeks; she has been acting up. When we sprint towards the first barrel, she gets up by the barrel, doesn't rate and fights the bit. We have a wonder gag bit and we've used it on her ever since we got her which is about a year ago. I would like to know of some drills, bit change, anything. I know it isn't her teeth because we got them checked and filed not too long ago like two weeks ago.