For sure 60 is baseline. Better is more, worse is less, all the way to no tip. I understand the argument "I will give 60 if dot dot dot," but if you intend to return to a place, you build you YMMV points by having 60 as baseline, even displaying that there is more, but they did not get it this time. Next time, YMMV points are redeemed, yada yada yada, BBJ at European Waxing Center. If you visit and she performs the normal routine nothing above or below average, and give 40, she knows you are not worth her going above in the future. Women who accidentally go to our spas tip 20 for good service, and the girls HATE THEM coming into the shop for this reason. For 40, you're just a cut above a lady at a mens' place. Work that YMMV game!