@trainman203 - CV2 is the start voltage...determining the motor speed at step 1
I have never seen any factory or installed decoder with a default CV2 setting of 0
In fact...most mfgr's recommend anywhere from 2 to 26 for CV2 depending on the typical use of the loco
I already have CV3 and CV4 set where I want them tyvm

@jward - Yes they are DCC OnBoard units...I kinda suspected they may not be adjustable
They are not perfectly matched but very close

I have 50+ N-scale loco's...and 5 HO...

All the HO models are Bachmann GP40's and SD40-2's...but I cannot seem to get anywhere using CV 2/5/6 to speed match

I have CV2 at 10 - CV5 at 255

The AccutrackII shows the same whether CV6 is 50 or 150

Am I missing something???