I used one felt for diamond spray, and I use the other one like I would use a linen.
Also, the bridle feels like it has less draw than the Premium I (in pad form... In hangers, the bridle has more draw), but if you use the same palm rubbing technique on the bridle pad as you would for a hanging strop, it actually feels a LOT better when you use the bridle, brings out its potential.. Give it a try.. just 25-50 laps with the palm of your hand, then strop. You'll like it