Ted,
The guys I go to for E-M (pre gen-iv stuff) are here:
http://www.pwrperformance.com/contact.htm#contact
I talk with Fred at Autovision first since he's built as many E-Ms over the past 20 years as anyone - maybe more. If he doesn't have an answer for you he probably knows who to ask...
Let us know after you try him!
Tom