It is a really close run back and a great plan. I've done the same with Alex on Narcosis. When he was ready to exit the calm inlet after the SI, every diver would be seated with all their fins, regs & BCD's on. Blast out the inlet and right to the drop point. No 10 min warning, no checking phones, no bathroom break. He'd reverse the engines, everyone stood up and jumped off in a matter of seconds.
I love the Jupiter / West Palm Bch dive boats because there are so many flexible options and backup plans (BHB too) The 2 women of tomorrow's boat - Sandy and Vicki are some bad-arse, hard core women captains !!