ORIGINAL: MN/Kyle
He should use whatever size lines up with his pin guard...
well not should, but the extra anchor point really helps.
I agree! That's a great sighting tool!
As far as what sells most? It's close between the 3/16" & the 1/4" sizes. I myself use a 3/16" and it works nice for me.
I sell very few of the 5/16", 1/8", or3/32" sizes.
Dan