Which cleaning solution do you use in you RCM?

I tried a few and ended up preferring the Nitty Gritty "Pure 2". Sometime after that I had a record cleaned by a record shop that also uses the NG machine but they used a popular homebrew formula. Not only did that not work very well but it added a layer of haze to the playback. After I took the LP home and cleaned the "clean" record again with the normal Pure 2 formula I found it was able to both clean the record and remove the gunk from the hommade stuff. YMMV but you can't really sell me on anything else at this point.

I'm sure the walker products are good, but I'm not doing a 4 step with anyone. For now, I'll use the best 2 step I've found so far, the AI.

Thank you Markd51 and all who have contributed. All good information, with varying results from different cleaning products. I prefer using a one step process with no rinse, and use Buggtussel when faced with a record with potential mold or fungus. I shall continue to try other products and post my experiences.

Hiendmuse, I think everyone would prefer a one step method, but without rinsing you're doing your records no good at all. I know full well--me and several of my friends used RRL and MoFi for years without knowing we had to rinse. What a difference it makes.