You'll have to pardon my ignorance, but I don't understand what about XTOL is so complicated. It's two bags, mixed in a 5L jug, and then poured into the tank for developing. Doesn't it only get complicated when you start mixing it at anything other than stock? Stock has seemed to work for me this far, but then my work probably isn't near the caliber of everyone else's, and as I said you'll have to pardon my ignorance on the matter.