[Basketcase]

Has anyone used these fender brackets? Do they hold up? My initial concern was strength. My boat is at a dock in Narragansett bay and while it is fairly protected, there are times when it gets a bit bumpy. I just dont want a situation where they rip off or lift out of their brackets, leave holes, boat hits dock, $30 fender floats away, etc. Any feedback? I hate attaching to the bow rail and using space on the back cleat for fenders.