Antisieze
I haven't had any slip yet, and like DeOldGuy, 15ft.lbs or so. I stripped a few and after having to helicoil , got a service manual for the specs on everything...'Cause "surely it can't only be 15 and 14 foot pounds" Well yea, it can. and also you don't want to squash the tube at the lower mount and muck up the innards
And antiseize, or antiseize and grease mix on account the dissimilar metals. Not Necessary, but what the heck...
Going over the bike once in a while checking for loose or broken fasteners doesn't really take that long after owning the bike a while, or during clean-up.
Tuck\o/