After having my Hogster R35 for the past two years and after hours of research I decided it was time to move up to a 640 thermal. Went with the Super Yoter R50. I’ve grown used to using the Bering optics menu and zeroing and such so wanted to stay with what I was comfortable with. Kirsch was a big help as always with my questions. He gives such a strong endorsement of the product by using it over the myriad of other thermals out there. Can’t wait to get it. Keeping my R35 for a backup or in case a buddy wants to go who doesn’t have a thermal.