I don't use any syncing at all, the beatmatching is done manually. It's actually a point of pride for me. I enjoy it, am good at it, and it's just another element to the performance of a DJ that I think can "add" to an event (not to say that syncing "takes away" or anything like that). But when the crowd knows that the DJ is up there doing it all manually (the informed crowd), it does make a difference. I know I enjoy listening to manual beatmatching DJs a lot more than syncers. Especially syncers that don't do half the stuff I do - that just do basic blends in and out during intro/outros. Blah. I enjoy hearing the skill and ability of a DJ work the decks.