You are not the first to have communication difficulties with Lampi that led to post-delivery issues. And yes, their production logs must show what was done, since a copy is included in the box to end users. In any case, when I did the upgrade to the 53, LampiNA (Rob) said he preferred the R2R version's sound, but the whole point was to go with tubes and be able to roll, i.e., sound shaping. I suspect they are both really close, but I wouldn't necessarily judge on the basis of the supplied tubes. The ones that came with mine were not the greatest and definitely not the somewhat warm sound I desire.
First, for clarity, I had no communication issues with Lampi (Fred) or Lukasz. They had no idea I had purchased a TRP with the R2R engine. How could they. If I had given them serial # and they had looked it up they would have seen it before I sent it back, but that wouldn't have mattered at this point I already own it. The seller should have disclosed it was a non-standard unit (based upon what Lukasz current production standards were) before I bought it and let me decide. Lukasz has said going forward customers are not going to be able to order a non-standard unit. Upgraded, yes, but if say Lampi is on engine 54 you won't be able to order a Pacific with engine 53. The other way makes it hard on Lukaz, Fred and Rob.
As far as tube rolling goes, I have many, many tubes now: Gold Lion, Fivre, Brimar, GEC, PS Vanes, Tesla outputs, Takatsuki, RK, GZ rectis, etc. I will roll again once I get it back from the factory.