Hmmmm, I will second Jesse's recommendation to not use Future as the base coat. However, not for the same reason. I've tested a number of solvents on top of Future and have had nothing attack the finish except alcohols and the more aggressive decal solutions like solvaset. If you leave water on it and the Future is not 100% dry, it will cloud up, but this is nothing another application of Future won't fix.
My reason for not using Future as the basecoat is that it can be too glossy and smooth to get the wash to stick where you want. I've encountered this problem myself, especially with