that is interesting, but if a fork is properly heat treated then shouldn't the weld not be a factor? Because the mounts are just added over on top of the fork they aren't holding the fork together. Modulation is the main issue but you really only need that for nose manuels but you can work your way around that too. Just put 1 grippy soft compound pad on and one magura black pad on this way it locks really well if you push hard, but doesn't jerk when you push lightly. Do you use echo sl levers? Its the only hs-33 lever I can tolerate. The tire thing is annoying, but I usually pop the rear tire and the noise is annoying but tolerable.
After switching back to hs-33s they feel a lot better to me. Everything just feels a lot more solid and reliable and I love being able to coast without the rubbing. It is possible to set discs up without rubbing but I like my lever to engage quickly when I push it.