Well what do you mean by crusing in high gear? My only experiance in a turbocharged car comes from a slightly BPU'd Supra, and a 13B Mazda RX-7, and whenever we needed to get out of a tight situation, or just get freed up from traffic, you don't HAVE to be in the powerband to get boost. I remember being on the highway with my cousin, and some guy she knew pulled out to pass us, but being the bitch that she is
she floored it from about 3grand, no shifting, and it didn't take too long to get full boost (14psi iirc) Quicker then it would have been to drop it a gear, THEN get on it.
~Bryan~