I hate 'em right now because they've made me look stupid twice with puddles of bar oil on the ground in the last few days. I finally looked close enough today to see the alignment arrows on the edge of the cap and the tanks on the saw. I'm going on my 5th tank of fuel in a new ms460. Unreal how much stronger this saw runs now than it did on the first tank of fuel. Back to the caps, in the long run I think I will like them.