1) Reel in slack, use a firm sweeping motion to set, and reel down and set again.
2) I would use a fast reel to get in any slack from wind, long 7 ½ rod, fast tip, and graphite to pick up the slightest pickup. Base your line off of the cover you are fishing, rocks- #20 mono and retie often, etc.
3) I usually get a sublet bite, or just feel the weight. Depending on your reasons for fishing, a jig hooked bass is going for the surface, so don't let him, unless you want a fun fight of surface jumping.