Why is it so hard to get good advice !!???

Looking at the specs I've seen elsewhere, some list an intake closing point @ .050, others leave the .050 part out. THAT makes comparisons difficult.
In post #9 here, member 273 listed the 292'509 cam as having an intake closing at 58 Degrees ATDC. A guy on FBBO showed some link that showed the '509 to have a intake closing at 74 degrees! AHHhhhhhhh!!! The Comp cam I liked showed an Intake closing at 73. This stuff is so confusing!