more agressive cam profiles (like the VTEC lobes) make their power at high RPMS... at low RPMS they tend to bog out and give rather sluggish performance
basicly engaging VTEC too early will cause a large dip in your mid range power
engaging it too late will cause you to over run the effective range of the low lobes the power curve will flatten out and then when you do finaly switch lobes you will get a sudden surge of power, it will feel impressive, but once again you are losing out on your mid range power
setting the VTEC crossover is really something that should be done on a dyno, not something you want to fuck with on a regualr basis
go get tuned and leave it that way untill you have a reason to go get tuned again (more mods)
another thing i would be very concerned with regarding that unit is, what does it do to deal with the different fuel and timing maps required for the different cam profiles????
