If were talking english here too, I ride Des on the flat in a rotary D ring snaffle bit, I can't find any pictures, but its like a french link but the section in the centre rolls.
As for over fences, I usually ride her in a rubber mouth jointed pelham with a snug curb chain. We haven't jumped in 3 months so ill be jumping her in a kimberwicke this coming week, but I feel I need a little more woah with her over fences, it may be different with Gidget.
If you're wanting to try a new bit, don't jump too far from what you are/were at, too much leverage too soon could confuse a horse, as could a change in where most of the pressure lies (poll, nose, tongue etc. )
Good luck! :)
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