Wilcox M68 installation / torque

Hello,

So I'm installing my Aimpoint PRO with the Wilcox M68 mount instead of the QRP II that came with the Aimpoint. I prefer the slightly higher cowitness the Wilcox mount gives. I had a couple questions.

1. The thumbscrew. How are you suppose to torque this? The thumbscrew has a slot, but the shank of the through-bolt that captures the picatinny rail protrudes through the thumbscrew / nut enough that a flathead screwdriver won't go through the slot...so how am I suppose to get the correct torque on it?
2. What's the recommended torque spec for attaching this thing to the Picatinny rail? I know the 3/32 Allen screws that secure the optic tube should be about 15in/lbs...but what about the mount to the rail?
3. Blue lock-tite on all the hardware is standard, correct?

Thanks for the advice!