T As far as the stick on wheel weights falling off, the last three sets of tires that I've had mounted and balanced have all fallen off after a while. My vehicles rarely get driven due to having a company vehicle for work, so my tires last for years, so maybe part of the issue Is the adhesive wearing out after a couple of years.
may also be they are not prepping the surface before putting the weights on. When I was starting out as a tech in Engineering I lost a 10.00 bet on an adhesives ability to hold. it all had to do with my not prepping the surface.
Lessons paid for are best remembered 
