u/Helpful_Inflation_90

Hello everyone! I want to make a shigura setup on my rear brake because I can't get the brake to work right. I don't know why but the lever keeps touching the handelbars and after that it locks the wheel. (I did a full bleed, changed the lever,even took the caliper apart but no success). I am looking to buy an MT5 set using my Deore XT BL-M8100 lever. My question is. I don't want to buy a new rotor. I saw that magura uses 2mm but Shimano uses 1.8mm. Will this gap be noticeable?

Also I saw that some use Shimano Olive and barb whit magura hose. But others are using Shimano Olive but magura barb