I used to have that scraping issue sometimes as my bed was not well trammed and without the mesh it would be too close in places if you didn't give it some +z on move. To start I did the typical paper tramming, but then used the mesh visualization to start tramming the bed better. After a few rounds of that I had much less slope in the mesh bed compensation. Then I went through the process of setting the z offset for the probe in the wiki again and I can usually print without any babystepping anymore. I also replaced my adjuster knobs with those nylon cored locknuts so they wouldn't vibrate loose and lose my settings.