Thanks for the suggestion Cossack, I'd definitely want the Lumizone over the Varizone.

While I like the Tenpoint Proview because of the crosshairs and the illumination I am worried I will not be able to sight it to my crossbow since it states it is calibrated for crossbows around 300 fps and mine is 270 fps.

I guess it's been narrowed down to the Horton Multi-Range 4x32 and the Lumizone. Anyone have any opinions on either?