Hard cold weather starts with fuel sipper tune

[scrapcan]

Have been running the 65 hp fuel sipper tune all summer and fall. Now that we are getting cold weather in southeastern Wyoming, we are noticing hard cold starts. Temps 10f to 30f. I changed to stock and seemed to start easier.

GPR tests good (stancor)
Glow plugs all hood
Remanned ad code injectors with new o rings earlier this summer
Batteries test good and taking/holding good charge
New alternator charging at 14.4 and voltage regulator works
Winter fuel with power service below 30 dosage
Plugging in or not

So any opinions on this tune and cold weather starts? Better tune for cold weather starts?