Just get the APE manual tensioner and adjust with your hand slowly till the noise goes away. Don't go torquing that b**** down or anything, just finger, FINGER, tight. Do a cold start adjust till the noise is faint or gone. Go out around the block. Come back with the bike warm, and if you still hear noise adjust 1/4 to 1/2 turn at a time, go around the block again, and repeat. It's better to be finger tight with faint noise then torqued the F down and no noise what-so-ever.
When in doubt... send it!