Ok, then if it is not beneficial to turn down the vtec engagement point, then what is the point of doing it in the first place?

Also, anyone who has the apexi vafc, can you fill us in on what you had to do to correctly tune and run the unit? What is involved? It needs to be dynoed and tuned through the runs, correct?

I just dont live anywhere close to a dyno shop that can run and tune the unit properly.