I get ya on that Jim and I understand the swing of a standard rotary will have a weak spot/Area On hitting the skin if the method of applying the ink isnt corrected etc, I am a Southpaw/Left hander, and I dont know if anyone else does this but I build/write my Circles / O's Anti-clockwise,

So if the machine was facing me with needle bar in view then my colouring/Saturation follows the same as that spindle going clockwise. Never really had any problems with colouring as such but just wondered if a motion going anti clockwise with the hand would be beneficial to a clockwise motion motor pre linear machines obviousley.