I did end up contacting both the Retailer and the Manufacturer.
First, My own due diligence before "complaining" or contacting anyone or sending it back included: Cleaning the barrel. Removing the shroud to check for clipping. See pics, there were burrs in the shroud and I assumed this to be the culprit and was happy to have found an easy fix. After shooting the gun with no shroud the results did not improve. (see picture of target shot at 50 yards with no wind) I tried every different .25 pellet I had at the time. I tried lubing pellets. I tried different "holds" even though it is a PCP and even tried different placement of the sandbags holding the gun. I even tried shooting the gun without the stock on it to see if there was a bad relationship between the two somehow. I basically tried everything I could think of.
After all of that, I first contacted the retailer, Kentucky Salvage, who told me they couldn't help me and I'd have to call Martin at RAW. So then I called Martin who was super nice, polite, seemed genuinely interested in helping and great to deal with all around. Although I had a bad experience with my one RAW gun, I'd absolutely have no hesitation working with Martin if I ever became interested in RAW again.
Short version: After paying for shipping back to RAW, I was told the gun was functioning as designed and needed nothing more than a barrel cleaning, which they did perform. When receiving the gun back, not only was there no improvement in performance, but after shooting a few more mags through it to try to figure out how I could tighten my groups up or let the regulator settle in some more, something had a blow out near the fill port and the gun would no longer hold air. I hope you can understand my frustration at this point in my new $2100 super gun.
After all of this, and now not being able to shoot the gun at all unless I took it apart myself to fix the leak or send it back in again, my discouragement was overwhelming and I contacted the retailer again. The owner of Kentucky Salvage, in only our second conversation together ever, start literally swearing at me about how I bought a perfectly good gun, beat the crap out of it for my own pleasure, and now wanted to send it back. This is even after I offered to pay him a restocking fee of $100 for his inconvenience. (which in retrospect I'm glad I didn't pay since he had lost all credibility when he started yelling obscenities for no good reason)
Even after this whole fiasco, I bit my tongue and have never until this day, aired my laundry in public.