Just my own personal experiences and preference, but I have found that a juice that might come up short in one set-up may come across quite nicely in another. I have flavors that work well in a tank at 28 watts while others may work best in one at 124 watts. I have a number of tanks, RTA's, and drippers all with different coils/builds and if a flavor doesn't work well in one, I'll try it in another. So, you might try varying your builds increasing the power range for trying different flavors. And yes, I do have a spreadsheet to keep track of what works best and where.