Valve lift question

1.65 will give you more lift than 1.6. You decide how much lift you want and assemble accordingly. You start to lose when all the parts begin to wear out.
1.65 will give you more lift than 1.6. You decide how much lift you want and assemble accordingly. You start to lose when all the parts begin to wear out.

That's not what I'm asking. After you calculate 1.5 or 1.6 or whatever, has anyone measured the lift at the valve and subtracted that from the cam lift? Such as...a .500" lift cam with a 1.5 rocker measured at the valve will not be exactly .500" lift because of imperfect valve train geometry.