Hi All, can anybody tell me what size dinghy I can go up to sensibly if I'm putting it on davits on the back of my Catalina 42. Does the weight effect handling speed etc, being stuck out the back. Is it OK to have it extending beyond the sides of the boat? I would like something more comfortable these days that doesn't involve twisting around to see where your going while getting your backside wet. Is there a formula for this?