I have an AEM EMS, stock wastegate, stock solenoid and vacuum routing... I think higher duty cycle yields higher boost. I'm not completely sure; there's an 'invert duty cycle' option in the software so I might have enabled that and forgotten about it a while ago.
I hadn't thought to control the solenoids that way (it's my understanding that the stock ECU switches them all at the same RPM), thanks for the info.
Didn't mean to distract from your thread, more info about my setup here:
http://rotarycarclub.com/rotary_foru...ead.php?t=5496