Originally Posted by huntrjumprjenn
I would not recommend using a different bit for each different style of riding. It is very confusing to a horse to have such drastic changes in his mouth so frequently. If you feel that you use a stronger bit because you need him to listen to your aids more in "work" mode than in "pleasure" mode, then it would be an adjustment in the riding and training more than in the equipment.
My horse used to go around in a copper double twist because he got too pully to the jumps. My new trainer took us down to a Korsteel slow twist and took us back to basics for months; now my horse can poke around a 3'6" course with no problem in his slow twist and is SO much happier. Hope this helps!
I'll just put it this way because I had a whole thing typed out but then decided not to post it... A bit is only as strong as the riders hands.