Honestly, it has been on my mind. Been really busy. You know: Tomahawks, Logan Hooks, Fragile Flake Hooks, D5 Hammer, second batch of Cam Hooks (micro, narrow, wide), current batch of Rivet Hangers, etc...
Huh? The RP style leverages the rivet out less than Holy Moses hanger?
The engineers I talked to said that the leverage would be a function of the distance the clip-in biner is from the wall when weighted, and that the closer the biner could be to the wall the better. Did I get something wrong there?
No, you got it right.
With the RP hangers, the biner hangs flat against the rock like a standard bolt hanger, but the other types make the biner hang at a 90 degree angle to the rock, increasing the leverage on the rivet.
I vote for RP copies too.
Much less likely to leverage out the rivet.
Me, too! I still maybe have one or two of the RP hangers left--precious! They don't try to pull the bolt out--important with old desert bolts that are still strong, shear-wise, but little pull-out integrity in soft rock.
The curved hanger design does not fit so well under some rusted nuts/washers when they are too tight to the rock--there's some extra space needed to accommodate the curve. This is worse if the washer is a large, fender-style washer.
But every replaceable hanger design has its issues...best is for the FA party to leave the damn hanger in place!