they seldom use laser,I would not have that.i "keep asking" because im new here and thought i did it wrong.so wrote twice. they all end up telling u what u want to hear.im still searching,travel is no problem.have talked to several of his pts.im in no hurry,he uses instruments others dont,to help with depth of blade when inserting fu's. this was developed by Dr. Khan who Keller learned from, and who practices in Chicago from time to time. im doing my homework, thanks .