... or tow a 2 person jet ski with ya'. There are several of those that are decent to tube behind. Some folks actually ski behind 'em, but I can't tell how well it works out.keep the 26 and get a cheap 16' for the children to use and for water sports. You can pull anything behind anything, but it's not always a good idea.
Currently have 26' boat. Would water sports, mostly tubes for now, be any problem with a 28' sport boat such as sea ray 270 slx or chaparral 276 ssx boats?