Flash ecu vs pcv/bazzaz

[R35 GTR]

I was wondering if anyone has any real world comparisons of a flashed ecu vs PCV/Bazzaz. I was interested in getting the ECU flashed since it's the only way to control timing and I also feel it is a more effective way to control A/F.

[Sl8R]

Well I have never ridden a flashed ecu s1000rr but I have had both the PVC and Bazzaz zfi-tc on my bike, and I can tell you that both systems are great but the Bazzaz in my opinion is awesome. Piggy back ecus can control a/f very efficiently now a days and the technology has evolved over the past 5 years.

Thanks sl8r