If I was limbing under 6-8” with it, I might use .325 full comp chisel just to try it out and for the smoothness. But for bigger stuff I’d use 3/8 full comp chisel. If it was dirty I would use 3/8 full comp semi chisel. Bigger sprockets will speed the chain up if you’re just limbing or if you have a bigger powerhead with a smaller bar. As far as skip vs comp, the cutters do the work. Sure it’s quicker to sharpen skip, but it also gets dull quicker because there are only 2/3 of the cutters doing the work.