3 months. 10 watts with silica or coton, 15 with genesis.
I've been averaging it when people give me ranges, but 13 - 26 is a bit much
Aren't there a few spots you tend to aim at for different juices? That would be more easily put in the spreadsheet...
I think rebuildables have made your initial plan somewhat moot.
And I say that while feeling like I know what you were going for, and while supporting that effort.
But the game has changed.
For better or for worse.