It is a heavy duty transmission and will never shift like a 1/2 ton. Also the dealer should have explained or given you a copy of the last page of the bulletin that explains the adaptive learning procedures of the TCM. The TCM will learn your driving habits and adapt the software to them over the next 1600 kms (1000 miles).
When you say 'learn your driving habits', what does than mean?
Is it learning how fast I like to accelerate from 0 to 60km/h and adjust the shifting point accordingly?
How do I make the transmission learn that I like to have it down shift aggressively as soon as I remove my foot from the gas pedal? Or that it should upshift as soon as I level up at 35 and 60km/h?
What happen if I do my 1600km in stop and go traffic vs towing a trailer on a long trip on a flat (or hilly) highway?
I miss my manual transmission...
They should make user customizable transmission profile: stop & go traffic, city, highway flat, highway hill, towing, forest road, etc...
Minimally, they should give us the ability to upshift.