It's gotta have capacity. A Mr. Freeze would do the trick but as already mentioned, St. Louis is rather close. However, they both have B:TRs. Any sort of shuttle would be overkill, especially an impulse. Let's not forget an Invertigo is a shuttle to begin with.
So what do I think they'll get, a Joker's Jinx would be OK. That rumor has been floating around for a few years. Some sort of wild mouse, however, would fit in perfectly, especially over near the Yukon Territory (the only themed area missing an adult coaster). It's different enough from the other coasters there to really stand out. What SFGAm doesn't need is another looper, especialy a floorless. They've already got Demon, Shockwave, Iron Wolf, Batman, and now Two-Face.
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Scott W. Short
scott@midwestcoastercentral.com http://www.midwestcoastercentral.com