The rear handle version I have only has 80 pound bands on it though, so I take it where significant fish aren't expected. It only costs about 200 PSI to load underwater. The big blue water midhandle has 120# bands so it's a bit harder to load anyway and costs about 300 psi for a full load.
If bands are properly trimmed the bands need to be "final cocked" with the butt on the chest anyway to get the mechanical advantage necessary for the "second grunt." Pull the rear band quickly to the first notch, then move butt to chest and pull it the rest of the way. Repeat with band 2. The last band lives in the first notch anyway. On the rigs the attitude is that if you can cock the gun on the hip or gut, the bands are too long. We make our own bands, so each band is trimmed to length for maximum force.
FT
