What higher quality build and finish would that be? Does not exist. Both finish and quality are about the same, Prime has better glass. IMHO
It would be comparing the two side by side and sending the ED3 back to Camera Land.
I'm speaking of the two sets I've owned; the armor on the ED3 was not joined well at the seam that runs vertically up the barrels. The armor was in a "bind"/buckled at the bridge and it was cut crooked at the bridge; Doug from CL even stated it shouldn't have made it out of the shop, but maybe his glasses were fogged when he inspected them.
I have the utmost respect for your reviews on optics Steve, but I have 20/20 vision and had no problems seeing the flaws in the armor of the Zens I've owned.
