Warmoth doesn't do any kind of final leveling, but they usually do such a good installation that you can get away with playing it without one. However, it will be better after your first full level crown & polish - it just will.... especially if you're into ultra-low shreddy type action. I emphatically recommend that anyone buy and study Dan Erlewine's book, "Guitar Player Repair Guide", before you make any silly, expensive boo-boos. His section on fretwork is unparalleled. For example (though I do doubt it would happen on Warmoth's superglued frets), Erlewine points out that if you have a loose fret, just filing it will drive you crazy. Each time the file passes over, the fret presses down, then pops back - you actually end up filing the surrounding frets more, making things worse. The book tells how to diagnose and fix every problem, gee I should get a shill fee.
$22 now or :icon_scratch: later.... :hello2:
http://www.stewmac.com/shop/Books,_plans/Building_and_repair:_Guitar,_acoustic/Guitar_Player_Repair_Guide.html
http://www.amazon.com/Guitar-Player-Repair-Guide-3rd/dp/0879309210/ref=pd_bbs_sr_2?ie=UTF8&s=books&qid=1196161155&sr=8-2