Miata owners (and anyone else)...roll bar suggetion: I'm looking for a roll bar for my '05 Miata LS. I know I don't need it for AutoX days but instead for days at The Mile and Road America. I was originally looking at an Autopower but Brian Goodwin suggested a Hard Dog instead. I spoke to someone at Hard Dog and he suggested either the Ace, M2 Sport, or M2 Hard Core Hardtop. I'm thinking the M2 Sport as I don't like the width of the Ace and the Hard Core is more than I need. Any suggestions, recomendations, other options? Thanks!