I have been searching for a solution to this issue for quite some time, and never really found a good result. I assume this is either because (a) it is super simple and I am overthinking things [happens a lot] or (b) because there aren't good solutions.....
I have a fiberglass swim step that is the perfect height most of the time to trap my nice Highfield dinghy tube underneath it when approaching the boat. It also tends to eat the dinghy when said dinghy is tied off to cleats on the swim step unless the lines are super tight, or I insert a full sized boat fender and release the dinghy off a bit.
I've searched for half-fenders, stern swim step fenders, and other things like that, but haven't found a solution. Some swim step fenders look promising, but require being roped in, and have large protrusions on either side, which would make exiting the dinghy difficult.
What would be ideal is a round fender that has a 1/4 of it cut out of it with screw eyes/holes along the long edge. I could attach that to the back face of the swim step, and the fender could face outwards and also reach around under the step, preventing the sharp edge of the swim step from scraping the dinghy, and probably, given a large enough size, prevent the dinghy from ever going under.
For now I use a full size boat fender, which is much too large, and tie it off the flag staff on the stern rail, and let it float between the dinghy and step. This has a disadvantage as there is a line crossing the step that you have to navigate around, and it generally just gets in the way.
Has anyone found a more elegant way?