Excals explanation on flat vs. moon nocks: If the "fingers" holding the string back pivot above the arrow on the deck, the string is pushed down on firing. If the pivot is below the above, there is a tendancy for the string to ride up [briefly] which is why those bows use the moon nocks.

There was a big posting on another forum, which I can't find btw, where a guy that worked for a wheel xbow co. explained all the different triggers that co. used, and which models had the better designed systems.

Not to sound like a salesman, but Excal uses the same trigger unit on all their models. Their latest sales literature I recently got w/ an order claims that they have less than 1% warranty claims. I think you'll all agree, no matter what you shoot, that's a pretty good thing.

When I replaced my alum inserts w/ brass, I used two-part epoxy, and haven't left an insert w/ tip in a target yet. And, the order I got was a pair of Danny Miller's arrow-pulling pliers. Best $11.00 I ever spent. Treat yourselves!!