I've had Sandie now for almost 6 months, and when I first got her, she chomped on the bit a lot...she wasn't used to the contact because she had previously been with an English bridle but on a VERY loose rein. She's taken awhile to get used to the contact but she's WAY better now. HOWEVER, sometimes when we're really working hard, and especially when we're jumping, she can be very strong and she starts really chomping away again, which seems to distract her from what she's doing. If you shorten the reins more (because when she chomps she also collects (almost OVER collects) her head and makes them loose), she chomps, and if you let her have some more rein, she throws her head all the way to the ground and takes them all from you! She also does the chomping thing every time I take her on trail as well. It almost seems like a stress-induced or nervous habit of hers.
She's worse about this when she's in heat, but she still does it in between sometimes as well, depending on the situation and what we're working on. I've been using a thick eggbutt snaffle bit on her since I got her, a very mild bit compared to most. I thought about switching to one of those "happy mouth" rubber bits, but I've heard from others that those aren't very effective with horses like Sandie who can become VERY strong. My trainer says she'll stop the chomping eventually with more experience and training (she was somewhat green broke when I got her), but we have a show coming up in June and if she keeps it up, she's really going to distract herself in an already stressful situation like a show!
Anyone have experience with this situation and what did you do about it? Thanks!!