Knowing little aboutt he process. I wsould thinkt hat a made-to-fit
cover would be better. seeing that the shrink wrap would be tight
enought to promote mold (my opinion) or mildew I think I'd go with a
more loose-fitting cover myself. Besides, the cover can be reused time
and time again, where the wrap is peeled off in the spring then is
disposed of.

So is shrink wrap really that good of investment.

Of course I'm one to talk. I don't have a cover on my boats, but then
again, I store them in my warehouse.