With my limited knoweledge!
PRODRIVE tuned ECU is the way to go IMHO! I have posted a thread requesting more info from one who has it installed.
Unless you are planning on boosting beyond 16 psi, I like the idea of programming/utilizing ECU with newer timing retard, fuel curve, & increasing boost. I believe PRODRIVE tuned ECU has backup route programmed to tune back to stock level of boost if anything goes wrong~
Just my 2 cents.