i have a general questions for my 2001 Mazda protege. I Have set of 215/35/18 rims with low profile Hercules tires. The problem im experiencing is my car vibrating at high speed, and over turning when making right turns. I just recently took my car to Canadian Tire and the guy there said there is no point doing an alignment on my low profile tires because he wont get a accurate reading....can there possible be another problem.....he did say my tires are balance, but he just visually inspected it....think he was just trying to make me save $$$