I find Michele Foster's easy to work with if I add a little shortening and some more powdered sugar and even a teaspoon of CMC/tylose per pound. I live where it's humid, too, and I almost always have to do this to my fondant to make it work, no matter what kind I use. You can get FondX from Global Sugar Arts, btw.
Marianna "I know my own mind...and it's around here somewhere!"
Michele Foster's FOR SURE!!! Made it twice now, followed the recipe exactly as stated and did not have any problems. This fondant is soooo good. I just made it this weekend, and every one of my guests ate the fondant and was asking for more of it. First time I've been to a party where I saw all the guests eat the fondant....most don't like it, but Michele's is really delish!
i use mmf but i have to believe it is not the easiest to work with. especially here in texas where it's humid. i've used fondx before, it's fantastic, but i just can't get over the price of fondant when i can make it so cheap. plus, my customers LOVE me for my mmf!