I use liquid Wimberley's WD2D+ on occasion but really don't enjoy measuring for the 1+50 mix, this is also why I have avoided Rodinal and the HC's. Even the 1+19ish concentrates make me do more "dishes".
DD-X is truly convienient in that it is NOT highly concentrated, the 1 part DD-X + 4 parts water recipe means it is easy to measure and mix in one beaker, no pipettes or other measuring tools required, and an error of a few ml is practically speaking, insignificant.
The big reason I was suggesting following the instructions is that Fuji and Ilford and Kodak have put an incredible amount of work into getting their numbers in the instructions right. It is a safe bet that if you are following their instructions and still having a problem, for example not getting the shadow detail you want, the problem is somewhere else.