Source or link for a set that are low profile that you don't trip over or as I've been told by my coworker your dad used to glass over frame (not the hatch/lid) then grind so its flush with the deck ? I may consider doing that with all my hatches.
My fills are forward in wheelhouse, both beside the engine box.
My pick ups are aft about 5-6 ft from the transom.
Pain in the ass sticking up as people trip over them.
Having a hatch to access those necessary ?
I have basically a set of plans with pictures & measurements I made up so I know exactly where every stringer,hatch, hose ect.... is.
If there where ever an issue I could always locate them but obviously not while out on the water if there was an issue.