After replacing my nuzzle with Mellow's Ruby nuzzle, i found under my lab microscope that the old nuzzle's hole shape heavily destroyed by the brass brush. under a lab microscope and found it was heavily damaged by the brass brush. So, the best solution is using a silicone wiper, but it's pretty difficult to find one that will be available for anyone anywhere. oh wait we do have one - The cheap accessible V6 hotend silicone sock :) till now I have seen someone using it (please correct me if i am wrong).
How to make:
Grab a V6 silicone sock and cut it as I have done in the pics
insert it to it's place and lock the two parts with an M3x10 screw and M3 nut.
install it with the original cleaner mount.
The files are available inside BLV mgn Cube 3D Printer project (files section) Hope you would like it