Valve Lash - Hot or cold?

Argh this again.. comes up about every other month. I've always set mine "close" cold and started them up and adjusted them hot and running for the "dial in". Never been burnt by slinging oil, a stock ish /6 could always be idled down around 500 for purposes of this adjustment, which cuts down further on the slosh which is less than many would think to begin with. Takes a little getting used to wrenching on moving parts but in this case not all that bad.but you do what you want