I use TD. I purchased a liquid TD (I think it is suspended in glycerin) which I use in both CP and MP soap. Powdered will be fine too, but pre-blend it in either some melted MP base before adding to main batch, or perhaps in a little glycerin or oil. HTH!
Bubbles can do it.
I melt my clear and then blend it, also cools it down as well. It turns white and all, I also like to add a lot of sugar and blending it makes sure it all mixes well.