i,d agree with Wolv ...moisture will try very hard to get in turbomiles.....and with sealed blades it might not be able to get out ...at least as it should ...ish...
it could be a pain in the ass
not worth a hill of beans here .. where i live it tends to rain a lot ......an awfull lot .....like a depressing amount of a lot ......so the blades here like a breathable wood paint on them , they kind of adapt to extremes....they get a bit wet ....they dry out ....the balance changes....and goes back
one extra option for sealing (and you have your own thoughts on this already ) is linseed oil
i never ran these blades ( i should have ) but linseed oil seems pretty interesting .....the blades are basically soaked in the stuff....it eventually dries out and hardens ( crystallizes or something )
this was the breathable paint version in sugarpine ....
sorry pics are upside down....
linseed oiled version is bottom
your blades look ready to fly .....whats not to loose ....