LOL... yes I'm weak when it comes to headphones
Rhydon is shipping my full V4 Magnum/325i upgrade with an extra set of drivers. I also picked up the absolutely INSANE "Amboyna Burl RS1 clones" from Marty. Once a few other items of mine in the FS forum sell, I'll be picking up a new set of 60's, leather headband, Black Dragon cable, set of Grado L-cush... all said and done, cost about $500 for the woodys.
It should be very interesting to compare the full Magnum vs Woody Magnum.
Ha! I figured you would. In all seriousness, the drivers are sweet. Smooth. Silky ... oh wait, this is a family site. The drivers will impress you and I'm quite sure of that. I'd like to find out how far the drivers in the wooden cups come up on or surpass the Grado RS-2i or RS-1i in sound? I figure the Rydon drivers in wooden shells have got to be able to providing those Grados a run for the money. Also, as I recall, you have a pair of SR-325i with Symphones at the moment getting the "treatment' right? I probably shouldn't say it, but if for some reason, you don't like the ver. 4 drivers from Rhydon, I'll purchase them from you. I always have a project running.
In regards to the question about the ver. 2.5 sound vs. the 4.0 sound, I can't answer that question. You'll have to go back into some of the older posts and read how the 2.5 sound was changed when ver. 3.0 of the driver came out. I've heard the vers. 3 and I'll tell you, I'd be quite content with getting that release of the driver. Yes, it is that good.