Good stuff
@Howlin Fester 
For me the Icy III is a more relaxed and yes less detailed/analytical but the Master fills that gap for me, I'm guessing the Hunter is even more crisp/defined as you say and what I would expect for it's price point but I've got that <$300 iem cutoff price so may never really know just how far apart the Master and Hunter are

After the Delta's the Master and Icarus III's are Bob's best offerings to date IMO which is why I'm so tempted to make that R1 jump as I think he like so many others have figured out DD may be the future of iem's after all! Helps me understand the expense to building and especially tuning multi BA iem's and looking at Nice HCK (AliEx) and some of the crazy not too mention expensive 12/18 BA iem's I wonder if they really have the skills (R&D) to make multi BA iem's the likes of the Noble's, CA's and JA's of the world? It's like the battle of the most BA's wins
Going to be funny if single DD comes back around to delivering all the goods for far less! I mean Nirvana in audio is such a pipe dream anyway