Aight yo, so ever since ive gotten my miata ive wanted to get a rollbar cause (while i dont plan to race) im young and stupid and want some security. Ive been looking at HardDogs and am considering the HardCore (possibly hard top ver.) Or the sport. MY QUESTION (which i know has probably been answered thousands of times): What is the actual differance, i know the tube diameter is differant but does one sit closer to the seats? Btw, im about 5`10 and have stock seats. Also is the padding worth buying?