Looking at get a 6-24x50 EBR-1 MOA. Looking at the Vortex user manuals for the FFP and SFP models, it appears that the SFP model has 1 MOA substensions while the FFP model only has 2 MOA substenions. True? Or do they have old dated manuals on their website or something? I understand the differences between FFP and SFP, but if the FFP only has 2 MOA substensions, I think I would prefer the SFP.