What a great idea that may or may work for different people! With the amount of money we spend on this sport, $40 is worth a shot any day of the week.

Chris

I did essentially the same thing years ago and it does work very well.
I have always had to wear glasses and I had an optometrist to cut me a lens
with focal length of my front sight and used a merit disc and was very competitive
in all the BB categories.
Elmo 13936L