I was looking at the compressor maps on the Turbonetics site...

It seems that the T04B H-trim would suite my needs. Lookin to make 250-280 rwhp at no more than 12lbs boost, but also with the ability to turn up the boost slightly to maybe 15lbs. What are some good options to get along with that? Is this really the correct turbo for my needs?

I'm looking for really good response and the ability to hold 12 lbs boost to redline (or within 500rpms of redline).

The motor will be a S5 13bt with cleaned up ports (not really ported, but just cleaned up a bit). The motor will be built for MAX response...