I am very impressed with Nitty Gritty Pure 2. It works very well and dries quickly due to a bit of alcohol. I have also tried Disc Doctor, Phoenix and L'Art and have not found any demonstrable superiority over NG2. I would say I leave it on for about one minute per side. There's no limit to how obsessive one can become in this hobby and I've decided to take a simpler approach for myself.
Record Cleaner Fluid suggestions
I'm looking for suggestions for a simple and quick "1 step process" record cleaner to use with my Loricraft. I'm currently using the L'Art du Son cleaner but finding it too time consuming. I prefer an effective fluid that I can apply and vacuum quickly and without any required rinsing. I can always go back to the L'Art du Son when needed.