I haven't tried CPOP because a bath & body business owner said her customers didn't like it. I really couldn't understand what the problem was unless the bar got mushy faster or what. I decided I don't want to rush things and I can always test a batch of CPOP later myself against my CP batches to see if *I* see a difference, whether it's in texture, appearance, scent, or how it lasts. It seems like a wonderful way to thwart my lack of PATIENCE waiting to try a bar!
Also, I've not had any problem with GM either due to someone in the biz for about 10+ yrs telling me I could freeze it, also (I freeze my water). I freeze the gm and I'm ready to roll when the lye hits it. The first time I tried it I even tried an ice bath around the container and it never really got hot (enough). The problem that can happen with goatmilk is said to be the lye saponifying the fats IN the milk too quickly which is supposed to give it the icky orange globs and burned smell (that I have never experienced). I need to work on the soap coming out with a creamier color though. I was scenting it with lilac fragrance, a touch of blue ultramarine and pink oxide and that is totally NOT the color I got, so next GM batch will have NO color so I can get a better 'feel' for the batch.
The very first CP batch I ever did had no color or scent. I wanted to experience how the batch behaved *without* the addition of FO's that could make it seize, or colorants (because also having painted most of my life, knowing the base color is important to me). I was most pleased with my first batch. I remember it being Sandy Maine's basis in her book, 'The Natural Soap Book' as being olive oil, coconut oil and Crisco! It came a out a wonderful cream color with lots of long-lasting suds, no smell, and very cleansing yet mild on my skin.