I've got a Shimano 105 triple crank and BB (FC-5603). It's a couple months and just under 1000 miles old.
The first 50 miles led to some annoying "clicks" and "creaks", but I then read up on how to properly tighten both the pinch bolts and the crank cap appropriately.
Then about 300 later I got some subtle clunking when I really got on the pedals had. I repeated the grease and tighten procedure and it was cool... for another 250 miles.
I'm 200lbs, and ride up a lot of hills - probably 5000ft a week conservatively. It's not the end of the world to do this every few weeks, but I'm thinking some loctite on the opposing pinch bolt threads might do the trick. Those are consistently getting loose it seems.
I own a torque wrench, but it's a huge 1/2" drive, wobbly needle type you install truck hitches with. Pretty clumsy and prone to strip a little M6 bolt I fear.
Anyone think loctite instead of Phil grease on these pinch bolts is a poor idea?