It seems that multiple coats and an evening out of the product being applied by going back over the areas with excess accumulation is just the nature of the beast when it comes to the cladding on a VX. I know I've tried a few different kinds of cladding products and it's always been the same anyway.
Regardless of what product it's been though, what's always worked best for me is using VERY light pressure on the applicator (sponge, micro-fiber cloth, etc) when going back over the cladding to even out the product excess.