For some reason I have trouble making a 2 lb cut mixture of shellac. The many directions say a 2lb cut is 2lbs of shellac flakes in a gallon of alcohol. So, I don't need nearly a gallon so I reduce down the recipe to 4 ounces of shellac in 16 fluid ounces of alcohol and the dewaxed flakes never fully dissolve, even after daily shaking and two weeks. I hate to just filter out the good shellac that didn't dissolve. Last year I just doubled the alcohol and got it all to dissolve, but I guess that would make a one pound cut. What am I missing here? Help appreciated.