Fellow captains, I'm a delivery captain (also private instructor) out of Florida. I've had great success with my deliveries, even in tight quarters and over shallow banks. I seem to be able to identify unnecessary risks and avoid them. I've been boating for six years but licensed for about 14 months. When I started working as a licensed captain, it was all roughly 20 to 40 footers going around local waters that I would get calls about. Gradually I would work my way up in size, moving 49' sailboats over multiple days. Eventually I was hired by a client to drive his 58' twin diesel McKinna. Initially it was intimidating operating a boat that size, especially in Ft Lauderdale where the river is narrow and there are plenty of bridges you must idle at until they open (and with no stern thruster). I successfully moved it out of Ft Lauderdale around the Keys and to Tampa where I've been driving it on a weekly basis for several months. The McKinna which was once intimidating is very simple to operate now. The longest boat I have moved so far has been a 1978 Pacemaker 66' (no bow or stern thruster) from the east side of Florida through the Okeechobee WW and I had no issues. Now I have a client who is purchasing a 113' Hatteras with no stern thruster. HERE'S THE QUESTION: How have you handled driving bigger and bigger boats, especially going from the 60' range to the 100' range? Do you have any tips on specific techniques in operating these boats? How many deck hands do you have aboard? How do you communicate with them regarding line handling? How do you decide how much wind is too much to leave the dock? Do you often have nightmares about your 100'+ yacht losing power in a busy channel? Do you have a plan if that happens? What about techniques for sucking the stern into the dock without a stern thruster when the wind is blowing you off the dock? Thanks for your input.