The 25.5" DL would have been attained with the Nitro 1.5 cams, which are the short draw version of the Nitro 2.0 cams. I'm pretty certain the DL range on the 2.0's is 27.5-30.5 while the 1.5's go 25.5-28.5", and those DL's would be with the stop set for 80% letoff.