That’s what we’re currently trying to figure out. On larger motors it definitely helps, but at this scale may be unnecessary. We’ve been able to shorten fuel grains significantly due to the CNVA, so we now get ~200 cc of nitrous in a 16 inch motor and still burn a roughly optimal OF ratio. As for the bell nozzle, it can be 75-85% the length of a conical nozzle and get identical performance, so less weight and more space for nitrous.