Removed the remainder of the vinyl down the rivet lines on both skins and double checked that everything fits ok, I upsized in error some holes in the spar caps to #30 but considered do a mix of AD3 & AD4 rivets down the spar but have now decided thats a dumb idea so will match drill all the holes in the spar and skin to #30, I've reclecoed the skins to the ribs and spars and will now match drill all the #30 holes so skin and spar are same size, once both sides done the skins can come off to be deburred, dimpled and primed.