As far as FTB mod packs go moss is easy to get early game. When Ic2 is installed the battery upgrade shifts the tier of moss.
Moss stone has many methods of production and to me seems like an early game method of maintaining your tool, speaking mainly of that wheat+bucket+cobble one (not sure what mod adds that). I put it on my noob stone starter tools.
But without Ic2 and or the mossy cobble recipes repair becomes higher tier as you need to hunt for dungeons.
If you have the battery upgrade there is probably little need to add repair except for those instances where you don't realize the charge is gone and you start damaging the tool (that or if it in turn recharges the battery).
This is true, moss is easy. But honestly so is the electric charge. Cut down a couple of mfr trees and you got a good amount of rubber, when dart craft is involved you get more electric circuits for the craft, and tin+ copper? Tinkers solves the problem with bushes. I kinda view them being the same in terms of challenge of crafting.
As for modpacks with tinkers, I'm not sure how many do but generally it seems they go into most modpacks in a bundle if tinkers is installed. However their are probably other modpacks that have tinkers without ic2
FTB wise thought, they have been together in the packs that are available. So I kinda lump them together.
Powerwise for tools with the charge, it's best to have something like an electric jetpack or a gravichest. Something to the nature. Actually now that I think about it, I think modular suits might work aswell. Not completely sure. But most mods have thankfully made a bit of a way to keep tabs on our power so we can say "hey we should stop using our tools now."
