We always use stud girths when jumping our horses. We use them wether we're using studs or not. The training they've had makes them really tuck their front legs up & the stud girth is covered with marks. Rather damage to the girth than their belly.
I've got a Comfort Zone one which is brilliant - £65. Nice and flexible, very light. Actually, I'm thinking about selling it as sadly I no longer use it due to new saddle having long straps, so PM me if interested!