This was brought up in the LRK3DE thread and I’m just trying to figure out why someone would want this setup… like obviously the average Joe Schmoe rider should absolutely not do this, but why would an upper level eventer make this choice? Genuinely trying to learn, not trying to attack anyone.
I’m only really familiar with the motivation to use a double bridle for dressage, aka the need for advanced collection with very subtle rein aids. To me, a running martingale attached to that curb rein would take the aid from subtle to… not that??? but I admittedly never have and prob never will need this on xc so I truly don’t know.
I accidentally hit post too early on this thing so I’m editing to add more questions… How would the reins be held in that situation? Just looking at this thing from Dressage Today about double bridles and there are apparently EIGHT different official methods to holding the reins: https://static1.squarespace.com/static/58c9129ce6f2e1f7914a4314/t/58ca6575d482e98a2e54d230/1489659297813/politz-double-bridle.pdf
I think I just don’t get it because to me, the curb rein lifts the poll, and the running martingale like, brings it down? but maybe I’ve got that wrong?