Been there done that mostly with tarps and no issues BUT on a larger Sailboat it becomes very hard to keep a tarp from damaging the topside finish in a windy area
My J24 pretty easy
My Cal 29 not so much
The white shrinkwarp allows huge amounts of light to work on the boat VS the tarp which turns it into a black hole as there objective is to BLOCK light
And there was no frreaking way after all that work i was gonna mar the topsides