Oil preheater in aluminum trans pan

how consistent are your 60' times now? are you using a trans brake? are you on slicks? do you always leave at the same rpm? do you have someone that can hit the rears with a heat gun and keep track of the temps to see if your getting enough heat in them when it's cool outside? do you run a temp gauge on the trans? lots of places inconsistency can creep in.
Your way ahead of me lol. Car is just nearing completion after several years of upgrades. Yes car has slicks, yes 1st time using a transbrake, Will be leaving the line on a two step, yes I have trans temp gauge and also will be installing an engine oil temp.
I asked the question more along the lines of I want the driver and car to be competitive and like you said, I am trying to address variables. Race gas is 18$ a gallon here. Rather than start up a cold engine and run the drive line to get some temp I thought that oil preheater said might be a better way, at least in the cooler months
On the first pass of the day. Good idea on the heat gun, thanks