I just recently took my 300D to Sam's Club for new shoes and just went out this am with my tq wrench and checked their work. ALL the lug nuts were tq'ed to at least 100 ft lbs. Some were over 125# and none on any wheel were uniformly torqued. I know from past experience with alloy wheels the tq should be spec and uniform. Even with steel wheels you are asking for warped rotors if not done to specs. I noticed right away that I had some slight vibration from even soft braking. After test driving after doing it to spec, the vibration is gone. As many on this and other forums have stressed, you are just asking for additional expense if the tire shops do not use a tq wrench and proper pressure guage. While the pressure called for was 29# for 195r15s I had 205s on there and the tires were 38, 40, 42, and 45#s in them cold. The prices are good there but the installation was not.
Bud