Worth thinking about
Milvina is aluminium, so sitting on the bare metal would have been impractical over the past few years, since we were in Norway and North of that.
Now that we are in balmy Scotland, and headed south it may work.

I think we have decided to keep our old cushions for another year, (by which time we should be really into the warm waters) then decide.

Some of the alternate ideas on the forum are worth considering too