shellac cuts are not measured weights of alcohol (DNA). It's pounds or oz. of shellac in a liquid volume of alcohol. Easy way to measure is 1 oz of shellac flakes in 1 cup (8fl oz) of DNa = 1# cut 2 oz flakes in a cup of DNA = 2# cut.
If you are using pre-mixed shellac (I use and recommend flakes) the seal coat is a 2# cut and the others are 3# cuts. Only the seal coat is de-waxed.
Scott
Finishing is an 'Art & a Science'. Actually, it is a process. You must understand the properties and tendencies of the finish you are using. You must know the proper steps and techniques, then you must execute them properly.