It is true, buzzards will argue about anything!
I like it and have a hard time believing the OP's installation will do much to shins in big water, unless you get flipped around and end up standing up facing the stearn while flailing your feet!
My favorite is the flat surface! How many beers have been wasted due to being placed on flat surfaces? Millions! A friend once told me: "A full beer is a terrible thing to waste, invest in some beer holders!" So after telling him to invest in a boat he bought me a couple of river betty's. For pounders they worked OK but 12 oz'ers you couldn't reach the can, had to stick my finger in the hole and pull it out. They ended up the garbage minus the straps they came with. Great idea, poor execution.
So I usually have enough plywood in the boat that I can simply cut holes; 3-1/2" hole saw works perfectly for my "beaverage" holders. But I will be making a couple of those nifty PVC holders for my fishing frame set ups.
I also really like the little suckers as well, I got a free one with my boat last fall and it works great! The only problem I see is that they will mysteriously transport themselves from my boat to some other boat... If it's bolted in it won't grow legs. I do love DIY solutions.