I need to replace a S&B 5-25 PM II that I just sold. I am not sure if it's worth spending the extra $1200 to get a 6-36 S&B over a Vortex 6-36 or $780 over a 7-35 Nightforce ? I have several Vortex 6-36 and Nightforce 7-35 just trying to decided if glass is any better on the S&B 6-36 or maybe...