I use Loc-Tite.
I have never used Loc-Tite on any of my Firearms, except on the screws that hold the scope bases on and the screws that hold the rings tight around the scope...I am not saying Mr. Safety Sheriff is wrong, but I have never done it myself.
I have been taking the action out of the stock each time that I clean it. Do you always leave it bolted up or is this an individual decision kind of thing?
Always clean from the breech, you don't want to risk harming the very important crown by cleaning from the muzzle, other than that...
If my pipe is the only thing in need of cleaning I leave it in the Stock, but if I hunted in the rain or excessive moisture or humidity then I will fully disassembly, clean and lubricate to my satisfaction. Sometimes I will disassemble and clean when I know it has been a while since I have unbolted it or If I feel the trigger needs a scrubbing. I also disassemble when coming from a really cold outside to a warm inside...sometimes I do it just because...I always check my screws before an outing though, and make sure they are "Snug"
If you are more comfortable totaly disassembling your rifle every time you clean it, go for it...If it helps you to trust your tool better then it is best.
I have never used a Torque Wrench on a rifle, I have never thought I needed one...I just tighten the screws on the gun the same way every time. A human can tighten a screw to almost exact tolerances with a little practice and knowledge of the rifle...just "experiment" and remember the pressure you applied in order to get it to shoot the best groups...just make sure it is tight enough...
Honestly, I truly think think you will know when it is tight enough, if you "force" it at all, you overtightened.
If you see the forearm of the stock bow out you overtightened.
