I chose this Promax disc and it was as indicated by a set of socket head cap screws supplied, seems durable and stable, meticulously crafted and fit without blemish on the new impeller.
On that occasion, I also have the coverings sanded slightly and now everything slowed down again. The braking performance is probably very fact become noticeably better, but at least the new disc has become negatively striking in any way and slows 1A.
Is certainly not for professional cyclists, but for a normal city bike definitely sufficient. Because the price is also plain to see as very cheap I think just not something I could pull off a star here.
So with a clear conscience perfect score.