I left it general on purpose to see what other's thought, hoping for a lively discussion.
More specifically this diver has a history of uncontrolled ascents, has trouble holding a safety stop mid-water, and is a very nervous diver. The 50 dives were done over a 2 year period prior, some cold some warm water, and AOW was done immediately after OW certification. The diver hasn't done any additional training since AOW and was originally thinking of simply doing a 45 foot "shallow" "easy" dive (cold water in a dry suit!!), to "ease back into" diving. I at least was able to convince them to do a pool dive prior, which was put off due to finding a dead computer battery.