I haven't, no, just that brand. The one package of wax I bought lasted me a year before I decided to empty out my pot (I use a wax melting pot designed for body waxing but is basically the same thing as a crock pot) and replace the whole thing with clean stuff.

I have just bought some more of the same brand because I had had good success with that one and when I looked at what else was available it was either more expensive or contained Teflon which i didn't want due to the environmental aspect.

I also did a bit of research into making my own (see the video I posted to another reply in this thread as an example) but came to the conclusion it would cost me the same or a bit more in money and last me less kms so I just went with what I have experience with already.

I too do the two chain swap although I'm considering getting a third just for winter. My pot takes 3 to 4 hours to heat up and melt all that wax so especially in winter if I can spend a day at home switching through and waxing all the chains I think having 3 will make my next winter more bearable as I really don't want to go back to disgusting, dirty oil!