Without trying to sound argumentative or apprehensive, transmissions are mechanical devices. They have to warm up. Oil is thick, gears and metal parts need a chance to become adjusted to anticipated conditions. Not much different than the human body. You wouldn't jump out of bed and immediately run a 100 yard dash. Would you ?
Respectively, your transmission should not be expected to perform perfectly, when it just gets out of bed. just my .02 for what ever its worth.
2011 GT. Grabber Blue. Procharged. 3:73 manual.Billit LCA's. Corsa Extremes. GT 500 wheels. Racemaster DR's. T-56 Tremec. Dynotech DS . Centerforce DF. American Racing headers/high flow cats 560 rwhp.Donny Walsh tuned
2012 Pony Package. Race Red.3:31 automatic.BBK longtubes and catted X.FRPP Sport axlebacks. BBK throttle body. Dynotech DS. Brembo wheels and tires. Strut tower brace. Airraid CAI. Bama tuned.