Which cleaning solution do you use in you RCM?

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.