Whatever it is, I'd be happy to send payment right now.
In my experience so far I definitely prefer the claw of the Eidolon vs. added bulk to build grip tuck into the body of the holster. The bolt on wedge is a great idea but I'd really like some additional options...if the current wedge is a Medium, I'd probably prefer an XL or 2XL, and I'd like it to be softer and able to be placed more on the trigger guard side. I've taped additional foam onto mine. I also appreciate getting the attachment points off the thickest part of the holster (otherwise they are often the first thing to print for me).
In case anyone missed it (saw mention of it but no link in this thread), Kyle Defoor posted a pic of the upcoming height-adjustable soft loop strut on his blog a few weeks ago.