I'm finding players are able to run the tugs aground too easily and then unable to use the "move" function themselves. I've been having some issues when using telekinesis that it hovers the tug above the water even after I move it into deeper water and disable tls the tugs won't move under user power. Am I using the wrong type of tls to move these or is an update needed?

I think what's happening here is ultimately a Rust bug, where the tugboats are getting stuck into a physics disabled state where they cannot be woken up. I don't think this is the fault of the plugin, but I've released an update which should help. As long as you release it in the water, it should start working again.