Gather your own data and do your own research, and you will see that all these talk about "overheating" transmission is absolutely non-sense, especially for a few back-to-back pulls on the street and drag stripes.
Of course, the guys selling the parts will claim otherwise and keeps on bringing up this stupid graph:
http://www.txchange.com/heatchrt.htm, which has absolutely no research to back up the claim and made by the same website who are trying to sell you more parts.