ok, yes yes of course,
that’s flicking through threads and forgetting what I read previous.
but anyway, the OP can take out as much ballast as he can to raise the boat BUT it will (or can) make it a very tender boat,
Ive taken out lots of ballast to match overplating and replating with a thicker guage steel,
the boat’s now proper rocky and tender,
I think, removing ballast from the centre rather than the sides might be best,
🤷♀️
(I’m having a reshift of ballast and it’ll be the centre cavities I’ll leave empty rather than the sides 🤷♀️)