I just picked up my 09 JK X last night. It has Hankook Dynapros at 255/75/17 on the street but a Goodyear Wrangler as the spare. Now the spare is also 255/75/17. My first question is are the Hankooks any good? 2nd question is even though the spare is a different brand, is that going to make any difference when its needed?