I have a Razor HD AMG on order, and I am trying to determine the correct height Spuhr mount to order. For the 30mm tube, Picatinny rail, there are two height choices: 30mm and 38mm. The AMG has a 50mm objective, so with Vortex lens caps I think it would be pretty close for a 30mm height. Does anyone have this combo that can confirm which one will work best?