John,
Is this your only Premier engine with the newer 6 axle 3/2 drive system?
I ask because I have three Premier diesels(6 axle 3/2 drives) that display similar behavior. They are from different years(2006,2009,2010)so it seems more than coincidence that they all three don't perform as well, compared to the pre 2006 Premier and all Railking models that I have.
The only difference I can see is the drive system and the 3/2rail convertible setup.
Recalling Barry's remark concerning porous paint strips on flywheels, I put a new tach tape on one that was really messed up, and went over the strips on the other two with a fine tip marker. While it did improve things, they still seemed a little "sluggish" to respond to load change, compared to previous Premier/all Railking models.
This is my first experience with the Premier 6 axle 3/2 drive system that came out(I'm told) in 2006. Just last month I purchased a NOS 2005 Railking scale FP-45. Since it employs the older drive system, I expected smooth and steady, and it does. Put your finger in front of it and it'll just push it out of the way. It earns a big 
.
I have a new PS3 Dash 9 due to arrive next week(hopefully). Since it employs the same 6 axle 3/2 drive systems, I am keeping my fingers crossed that it will perform better with the PS3 system.
I don't know; maybe I'm being too picky. After all, the "three" have excellent sound packages; even the PFA talk sounds more realistic. And once up to 6-8mph they run fine.
