I just can't understand why there is this ongoing search for the cold lash formula--Warm it up set the lash and when it is cold well...There is the cold number--which BTW is NOT a promise it will be right when warm--Race engines need the lash set when hot--Period! It is overrated--as long as it has enough so the valve closes then you don't have an issue--too tight and car runs great only a few tenths off---don't give me all that bull about lobe ramps etc --it comes down to enough to get the valve shut and not so much it rattles and bangs parts together--you guys put way too much faith into what cam makers "claim"