I'm using an SSD drive as my boot drive with the BIAB program, and have the RealTracks and RealDrums alone on another internal drive. The performance is amazing. Plus, this leaves my PG drive as my backup, which I keep in storage. So, there are several ways to set this up that work.
And my advice to Matt is that just because a machine appears to be working when being run in a certain fashion does not mean that the machine is being used as specified by the designers.
Not necessarily a bad thing, mind you, if you can afford it.
After all, it was Hot Rodders who made cars run faster. Many at the expense of experiments that destoryed engines, transmissions and rearends...
--Mac