Has anyone that has a Whisperlite ever used two pots that fit inside of each other as a double boiler? I have been wanting to try it for things that you want to simmer and can't on the MSR. Just an idea I wanted to share and to find out if anyone has attempted it. I tried it at home and it seems to work, but didn't use trail type food when I experimented. IL Fltlndr@aol.com