I approve of a slider but I would max it. You are shorting yourself ... not on the useless greylings, but the actual GD with wood/rock/etc are 90% of an emergency raft, campfire, or just free building materials not to mention free block/weapon skill.
If you want them to leave you alone for a bit, make a fire. Which, again, you can do after killing a small # of them. Smokey may not approve but leaving excess campfires about is harmless in this world.