I used to tie a Butterfly Knot into the rode to clip it off short. It will hold securely, is easy to tie (once you get the hang of it), and unties easily after taking a load.
Alpine Butterfly Loop | How to tie the Alpine Butterfly Loop | Mid-Loops Knots
As said above, a short piece of line permanently attached to the bow eye, with a carabiner (preferably locking) at the end to clip the loop from the butterfly knot into. The 'biner then gets tossed over so the load goes from the rode to the carabiner to the painter to the bow eye. No pressure on the tubes.