ATR Magnetics Echoplex Cartridge

I'll do the review in English because I guess I'm not the only one that is on a quest for tape cartridges since Fulltone closed its doors.
So, I do own a Fulltone SSTE, and I'm trying to find replacement cartridges.
Here's my review for the ATR magnetics echoplex cartridges:
Pros :
The outside part of the tape is rolled very short on the cartridge. So you can adjust the length to your needs. No need to shorten the outside length. Considering the SSTE has a shorter length of outside tape, I works perfectly fine. You just have to pull out what you need.
there's no erasing problem here, contrary to what Mike Fuller once said about this tape, or I don't hear or notice it.
No hiss or extra noises. The tape is actually really quiet and I can push the volume of the tape echo without much trouble.
Sound is kinda flat and repeats have less spirit than the Fulltone's BASF tape. You like it or you don't.
It works great on the SSTE and that is a major plus. I have not noticed any trouble so far.
Free felt arm included which is always great
Les - :
Expensive for what it it.
Cartridge is definitely not up to Fulltone standards and has no ball bearing. It seems to be made of cheap plastic, but whatever.
Probably the most negative point of them all, is that it has dirtied the pinch roller of my SSTE incredibly fast to the point that the red plastic is almost turned grey. I don't really mind since I can easily clean the pinch roller with AF International PCL100 spray that makes magic to it, and same for the heads with isopropanol, but still, I'd like this tape to leave less dirty on my tape echo.
The free felt arm is kinda made of poor quality felt and metal. It's a little cheap compared to the Fulltone ones.

All in all it works, you can give it a go. But be prepared to have to clean your machine quite a lot.