I broke down and bought a reader mask, I was gluing them on at the LDS and having fits doing it. The recommended method is with neoprene cement. That stuff is way to thick, I could never get the lens to lay flat. Turns out the LDS had some Sherwood Mag fours in stock for something like $32, I left with one. My only choice was the +1.75 which turns out works great as well. I've kept my lenses just in case......