Program questions

[Lonestar10]

When I used an older overlay on my truck when I shifted ied get a small poof of smoke when it was warm out that I could see in mirror. Now with updated overlay I've noticed 0 smoke shifting when reving from idle I get the slightest haze. Just wondering if it's normal. I mean no black smoke means no unburned fuel which is good but leads me into my second question.

My truck is either defueling by gear and RPM or by speed. In L through 1400 in 5th my fuel rate isn't going above around 160mgstroke then at around 1400 in 5th or around 20 miles per hour suddenly I'm up over 300 mgstroke and accelerating good. It does know which gear I'm in.

trucks getting around 5.5 miles to the gallon running 65 and lite "50k to 65k" and 4.9ish at 75 to 80k lbs

Cm871-13sp-500/1850- flatbed - never had a bad program besides Cummins oem previously. 200k on overhaul. Original head as far as I can tell 1.08m miles. New actuators/injectors/100k on turbo/fuel psi stays at 263-268psi according to insite.

Any wisdom would be awesome.