Uberwaltz, this is the one I got;
https://www.atrtape.com/products/mds-36-tape-14-x-3600
I downloaded those 15 IPS tapes to the hard drive and then re-recorded over them at 7 1/2.
I have a good set up for downloading because I've been doing it with vinyl. I got very high quality results, I can't tell it from reel. For sure you will get the same results as new tape when you record over once.
I'm thinking about making a tape, downloading it to hard drive, and then recording a new tape over that. This way I get double duty from the tape with no sacrifice in quality.
If you have the set up for downloading vinyl, you can do the same.