sorry.i'm not obligated to do these 'tests'.
i'm sure in the entire CS forum, i'm not the only one who has this lens and not the appropriate person to even comment on this lens in a 'technical' way.
search wise, i've already said.no limit button.hence hunts alot.quite irritating.:angry:
it just a suggestion, My apology if it have been taken too seriously.

I had the previous version of the 70 - 300. Being a ED lens and comes with a Limit Switch. All I have is that it focuses pretty fast and more robust than the 70 - 30 G lens.