I know you’re looking for some alternative training method to try, and this is not that per se, but something I’ve found useful is to have someone take video of each and every ride for a period of time and watch every second of it myself. It sounds stupid and simple, but I learned a LOT sitting in a chair that wasn’t going to spin, spook and buck me off. Being able to observe the good, bad, and ugly rides over the course of a month helped see what the freak outs actually looked like.
There was a huge difference in what I thought I was feeling vs. what I was able to observe when I wasn’t riding Sir DucknSpin. I seriously thought I was in fearless mode and not riding defensively. Instant replay says otherwise. It was slight and subtle, but it was there. We’re talking my finger moved an eight of an inch before Sir DuckandSpin’s eye widened and we were off to the rodeo.
I didn’t even see it when I recorded a ride, watched it back… then did the same with the next ride. I was frustrated and not figuring out why the hell there were inconsistent freak outs. I watched 3 or 4 ride videos back to back and that’s when I noticed more than just the horse getting looky… put the video on slo-mo and there was that tiny hand movement before every.single.one.
I know it’s not a new training method or anything earth shattering, but it might be worth it to watch what’s going on from a different perspective and see if there’s something there that either he or you are doing right before the over reactive moments. It’s easier to see when you’re not on the reactive horse with your heart thumping away at you.