I should not say anything, but I feel I need to.
I just spent four hours in a built motor LMM, 4094VVT/Danville Modified charger with a S475 on top of it, it is a new build, local to me in CT.
It spools unreal, it did not code for any underboost or throw any "reduced engine power", in fact I tried everything I could to get it to code, it would not.
I am not knocking Fleece or Garrett or am I saying that Danville is the greatest, that is not my intention of this post.
This post is to simply share information, the only difference with the other trucks IMHO was the modified 4094vvt charger from Danville, it works and works very well.
Everyone is free to make their own determination from this information, but I can share the stock OS with anyone who wants it, it is the latest TIS OS for a 2009/LMM and was just downloaded on Friday from TIS.
SoCal Diesel can provide the build info to me if I request it, it does have 60% injectors and is a Stage 1 motor with up-pipes and manifolds.
Ross has been notified by email of my findings, I do agree with Jeremy, the amount of time spent for free logging, changing, re-tuning was significant, and I question that it is not EFI-LIVE software but hard part related at this time.
I would like to see another truck with a standard 4094VVT get swapped with a Modded one without twins to see if that truly is the Fix, perhaps Rob will do this as he has an LMM and is already started the process. I for one do not have a truck or the time to do this to.