Depending on the study, 84-95% of bull reds survive at least 48-72 hours after being deeply hooked with a J hook. That's good enough for me, given that we release a lot more into the ice box than into the water, and given that we only deep hook about 30% with our fishing methods and J hooks. See:
http://www.dnr.sc.gov/marine/mrri/in...rum/hooks.html