At the time I was probably referring to MF. I now use CC Clear, it's close to MF in firmness (overall just a tad firmer). I've been experimenting with the CC Regular for dipping and it works really well. With MF I wasn't as crazy about dipping with regular.
I have some Calhouns and MF on hand. I use both for testing molds or to help someone who is having a problem and is using one of them. For all my own pours, samples, and prototyping I use CC Clear.
Jason