Does the XT M8000 brakeset really have issues?

[Traveler]

There are some international reports that the new servo wave suffers from a moving bite point. According to the reports XTR, XT and SLX is displaying this problem. But who knows, who cares, use them.

 

http://enduro-mtb.com/en/best-mtb-disc-brake-can-buy/

 

Best brakes I’ve owned, MT5 NEXT by Magura. Literally like anchors with awesome modulation. After 18months of hard use I started feeling a bit of a loss of performance on the rear caliper. 3 of the 4 pistons were a bit lazy, Magura swopped them out for brandnew.

 

https://dirtmountainbike.com/bike-reviews/brakes-gears/magura-mt57-brakes.html

 

I tested the ‘new’ Cura’s and they are very nice, really well made.

[Rushdee]

http://www.mbr.co.uk/reviews/products/shimano-slx-review-2013

 

...and this was published back in 2013. 

[Rushdee]

another:

 

http://www.bikeradar.com/mtb/gear/category/components/disc-brake-systems/product/shimano-m675-slx-mountain-bike-disc-brakes-50370/