windage is not really a micro as you loosen nut and slide the bar
Huh? Mine has micro adjust windage and elevation. You loosen a set screw at the end and turn the knob to adjust left/right....no sliding bar.
I shoot a left helical and don' t have any clearance issues with vanes or especially feathers as Rack pointed out. I really like my rest and if I break it or wear it out I will most likely buy another QT3000.