It's just entertainment, but I like it.
As the way the show is edited, it looks like Jay is this years Brad E. and/or Kelly (combo). He seems to do well in pressure situations (so far) even though his practice sessions were terrible. He also comes across as a-know-it-all that gives advice when none is asked. However, this is just how he's portrayed. It probably isn't even close to who he really is - who knows?
There are a lot of accusations on unfair 'setups' on Top Shot, some may have merit. However, in this case, as presented, I don't see how Jay received an unfair advantage. If it were scripted, then the whole premise of the show would be annihilated if it were ever leaked out. The 6-to-6 point tie with the tie-breaker on friendly hits did seem coincidentally dramatic, but most likely Jermaine's mistakes were his undoing. I really liked Jermaine; man he looked like what you expect in a shooter. He also came across as a really stand-up guy. However, in unfamiliar competitive situations, you just don't know how some people react.
As a novice I had the fortune of a helpful range master on how NOT to hold a handgun i.e. the cup-and-saucer hold. He called it the 'manicure' technique
Nevertheless, Jay had his reasons not to switch techniques mid-stream. His view was it's too late to unlearn something in a short period of time, then perform in pressure situations.
Jay looks bad initially in a match, recovers quickly, still looks bad, but then works his way into hitting targets. A lot of people just get flustered in similar situations and completely collapse e.g. Mike from last season's first episode. If it's just dumb luck, he's doing it consistently.
It may catch up with him, but it he's managed to elude the alligator jaws so far.
Daryl as presented by the show's editors as similar to last season's Adam Benson i.e. a back-stabber. It looked like it was only Daryl's decision, but apparently it was a team decision, but without the knowledge of Jermaine and Jay (Daryl's account in another forum). Nevertheless, despite Jay's many annoyances, IMO, the team should have at least tried to patch things with him first since he was performing. The plan backfired when Jay beat the heavily favored Jermaine. Now they've still have to deal with their teamwork issues, but with emotions running much higher. Again, this is coincidentally dramatic.