I am replacing the teak handrails with stainless steel. My intent is
to eliminate teak maintenence and create a strong point in the deck.
To that end I have core drilled a 2" dia hole from underneath
(leaving the top skin intact) at each rail attachment point. This has
removed the wet core. In order to eliminate overhead work, I intend
to make a layup on my work bench 1/2" thick and then cookie cut out 2"
discs and epoxy these into the empty core location at each rail
attachment point. Once these are in place, I'll fill any low points
and glass patch the bottom skin. The rail, itself, has captured nuts
at each attachment point and will be thru bolted from underneath with
large backing plates.

Question: What layup schedule should I use for the cookies?

So far, I have prepped for one rail and I have three more to go.
Question: Is there an easier way to do what I want to do?