EOIC vs. "The Chart"....

Nice evening to run the valves.
I do them dead cold, then a quick verify when they're hot and have always done it EOIC.. but I thought, "ya know what? Let's try the old MP chart and see how the two methods match up"...
They didn't. At least for me.
My cam is a 282/[email protected]/.555/112 solid FT, not max-aggressiveness but no slowpoke either, and using the chart left me wide by .002"-.003" all the way around. In other words the chart method had me still on the ramps, just barely, and not fully on the BC...Damm that's about half of my 'wiggle room' lash number (I go .006" tighter than hot spec and end up on the money when it's hot--aluminum heads.)
Anyway. Be careful using the chart that so many swear by if you're looking to be accurate.