Gimp, it is listed on sal's web site, so I reckon its available.
It does appear to be a real time saver, but the price is really not a dollar saver. They $24.95 for a 2 ml bottle.
I think I shall continue to use the Zaino as I always have,
By the way, I applied a Z6/Z2/Z6 this afternoon here in semi sunny Florida,