Barrels for sure. And I spoke with the show director from one show I am interested (trail competition- not man-made.. as in ACTHA.but not that asso.) anyways.. I will use it for practice more than anything, along with trail riding, and barrels. If I have to switch to a bit for my other shows then I will use my regular bit.
This is the first time hearing of a beetle hackamore. I have only read and heard about the mechnical, little s, bosals, and the english type on.
I know every horse is different, and I will probably have to try out many different hackamores before I find one Duke feels comfortable in. Just like I had to do with bits, but I like to give Duke his mouth every now and then and not have some piece of metal stuck in his mouth.