Its all preference. If you like the feel of single trigger use that, same with double. But i must say whichever you go for, get a new frame because that cheap @$$ that cut the guard away screwed it up bad. My friend did that (only didnt get double he thought it would give him higher ROF by cutting the trigger guard
) and the refs told him he had to get a new frame with a trigger guard because they wouldnt let him in next time if he didnt have one. You have to have a trigger guard as of 2000 so play for half a day with each trigger so you can get a feel before you decide (fields might not care for rec ball but tourny's do). The ans bolt i have came with it, i shot the stock and the ans and liked the ans a little more (chopped like 1 ball less if that makes any difference) so i dont care :-).