[albada]

(I'm abandoning XTOL now that it is a discontinued product)

XTOL has not been discontinued. That was a false rumour started when B&H's website wrongly claimed it was discontinued. It's being sold by B&H here: http://www.bhphotovideo.com/c/produc...owder_for.html
And by Freestyle here: http://www.freestylephoto.biz/875175...o-Make-5-Liter

Mark Overton