I have narrowed it down to either the Vortex Razor Razor HD Gen II 4.5-27x56 $2000 or Razor HD AMG 6-24x50 FFP for $2500. The AMG is almost 2 pounds lighter but the Master Piece Arms MPA BA is heavy anyway so not going to do a lot of walking with so not really worried about the additional 2 pounds. The Gen II Razor goes up to 27 vs 24 on the AMG which I like. Both FFP and mil so not seeing any advantage of the AMG? Any differences in durability, quality or clarity? I haven't got to look through an AMG so flying blind on this.