I don't recommend anything but summer tires on a SRT6 -- its hard to get the power down on all seasons without lots of wheel spin. For a NA Crossfire, all seasons are fine.

My SRT6 came with Michelin A/S 3+ and while they are a decent tire; I do a lot high performance driving (track and autocross) and they definitely do not fit the bill. I highly recommend ultra high performance summer tires for the SRT6, and ideally more meat (wider).

Also, you can rotate the Crossfire's tires, it just requires dismounting and flipping the tires. That works fine on directional tires (as flipping them will reverse the direction for the sides so they still point in the right way when mounted), but it will not work on tires that have a specific "outside."