We switched to a hatch launch and douse a bunch of years ago-I'd never go back. Much less hassle in the cockpit, no need to detach/reattach lines, much less chance of an accidental early deployment. The current NA champ uses a companionway launch (a carryover from his J-24)-I tried that a few times, didn't like it as much do to the sail obscuring the view from the helm during the douse.
Make sure that the hatch has no nasty things that can catch/tear the sail though.