I don't agree. I believe hot is inaccurate. Temp change moves around to much while adjusting. Lash them cold, check them hot, get a number. Then recheck cold. Now you have a baseline. Make incremental changes cold until you produce the best results. Whether it be a little tighter or looser than the called out specs will make little difference. At least all 8 intakes and all 8 exhaust will be at the same number.
Doug