Without testing this is just throwing random hardware at a problem.Is it possible to combine a ripstop with an ascender like the RM? If so, what would that entail, another biner?
In broad brushes
- Toothed devices seem to cut rope sheaths at 4-5kn or thereabouts. Most ascenders are toothed...because this is normally a good thing in their designed use.
- Ripstops and similar fall-arrest devices arrest falls at a lower (but not documented) load than just hitting the end of a static rope.
But for such an off-label application the onus is on you.