M2 is just the right size, its definitely not too large.
I just tried shinning it at a tree about 100m away. Man, never thought a flashlight this small could actually illuminate it! I am using P60 at the moment, P61 seems to be an overkill, it mainly increases the area which I don't need. I am sure I'll find some use for it, but for now P60 is going to remain in the M2.