I concur with your assessment. I dialed mine up a bit above the minimum because of the bottoming out potential. I figured on the right wave set bottoming out might hurt my back more than not having the suspension in the first place because of the momentum build up and inertia involved in the sudden bottoming. But as you know, adjustment is as easy as turning the knob so no real need to find that one setting for all situations.
After 1 use in salt I'm seeing a little bit of rust bleeding onto the fiberglass seat base. Something I expected, but it isn't terrible yet.
I still haven't done a 50 + mile one way trip yet. That will be the real test. I've got most of my repairs done, but still have to replace 3 trailer leaf springs/u bolts. Ordered the parts online, got them last week, taking boat off trailer and planning to repair over the next few days.
Then a matter of finding a suitable weekend weather window to head out.