RTM C60

I have bought a number of those cassettes once the ATR ProChrome went out of stock at Thomann.
I have tested those RTM FOX 60 with two Nakamichi decks, DR-2 (three heads) and DR-3 (two heads). I have calibrated them for the lowish sensitivity of this RTM tape, otherwise I would get Dolby B/C mistrack. The same goes for the bias. The end result is fantastic, you cannot distinguish original and copy, also on the DR-3, the two head deck, which left me speechless.
Unfortunately the shell is not on par with the tape, in one case I could hear a very disturbing squeaks, because the tape was not evenly rolled. I had to rewind the tape forth and back to even the reels and remove the squeak. It is a lubricants problem, I think, there is room for improvement there RTM.
Unless you have an autocalibrating tape deck, like the Dragon, or the CR-7e and so on, and plan to standardise on this cassettes (since they are the only one produced nowadays), make sure to have the sensitivity of your tape deck adjusted for this cassette, it is well worth it!