On the Triode Master thread someone mentioned about Clayton offering an upgrade to owners of the M3. I saw that the TM has a new M35 compression driver. I was wondering if there will be an upgrade for the owners of the original or Turbo M4/M3? Is the M35 driver going to be in both of the M lines now? I have the original M4 Turbo that I ordered at RMAF 2015 when it was first introduced and would like see if there will be an upgrade path to the new Turbo S models with improved crossovers and possibly the M35 driver.