Agree with the Learsfool and Dopogue. AI fluids beat Disc Doctor or the old RRL fluids hands down IME.
Do you need a RCM? Well, how clean do you want your records?
IME it takes more than toweling to get scummy cleaning solutions out of the grooves. If you let any residual fluid just evaporate, suspended contaminants are left behind, right where they started. I've recleaned many hand-washed records on my Loricraft. The liquid that ended up the collection bottle was anything but clear. That's not to say you need a $2K RCM. Even a home built RCM is better than nothing. In the end it's a matter of how clean you want your records and how much time and money you're willing to spend to get them there.
Do you need a RCM? Well, how clean do you want your records?
IME it takes more than toweling to get scummy cleaning solutions out of the grooves. If you let any residual fluid just evaporate, suspended contaminants are left behind, right where they started. I've recleaned many hand-washed records on my Loricraft. The liquid that ended up the collection bottle was anything but clear. That's not to say you need a $2K RCM. Even a home built RCM is better than nothing. In the end it's a matter of how clean you want your records and how much time and money you're willing to spend to get them there.