Bill, just from the names of those liquids I can tell they're real gunkers. Different performance, in terms of ml per build, will happen due to minor differences in each build. Even a commercially made build will have differences that will effect longevity. All but two of the liquids I mix are pretty much "dry", very little to no sugars in them, and I get months, say a minimum of 200-300ml, out of a build. The two with sugars are more prone to gunking and those atomizers get re-built on a monthly, say 100ml, basis.
I never dry burn or clean coils. I have done it a few times and, to me, it's just as much trouble, and time consuming, as simply winding a new coil. The cost of wire is so low it's not even a factor to cheap old me. Another thing that helps me is that I rotate through about ten mods/tanks a day. Which one I use depends on where I am and what I'm doing. That has the overall effect of extending the usable time per build well into months.
My big complaint about re-building is getting the wick "just right" and exactly the same each time. More than once I've done a build, vaped a tank, then ripped out the wick and started over again to get it right. I have found that re-building is best done when I'm relaxed and not going to be interrupted in the process. I've got the builds down to the point of not even getting a "new coil" prompt after a re-build.