The ! said:I mostly use ISO XP now; it's pretty good and reasonably priced.
I've used Sportlab in the past, too. (just ran out a few minutes ago, actually!) The chocolate was good, but my bro tried vanilla and thought was vile.
Interesting, their vanilla is the best vanilla I've ever had. Most of the vanilla's I've tried taste like cold mushroom soup, but thiers taste's like vanilla ice cream.