Re: ski/tube behind a bayliner 2750 or similar cruiser
I have a similar boat. First, the 2750 is an old boat - with a carb 350/volvo outdrive. Mid 80s vintage. So skiing is out of the question unless a pro with great balance.
Tubing, however, is great with a big boat because the wake is so large. With adjustable tabs I can pull young kids at semi-plane speeds (12mph is popular) and keep the boat nearly level. Once I get on plane around 18mph the waves are pretty big and little kids get scared. Certainly you arent going to be whipping anyone around in a rig like this, but it is plenty fun. Because the boat is so heavy to start with, you wont even feel the dfference with a tube back there (unlike a small boat).
As long as you have a long rope, there is no CO2 worry.