What does the "high gain" option refer to when buying preamp tubes

@designsfx  , thank you!  Since I feel I have too much gain, the "high gain" option would probably be what I would be looking for.  Thanks again.

Tube depot charges $2.00 to test the tube. Like I said the gain is the same on all 6SN7s tubes. No test is going to change that! You should give them a call to explain what they mean!

@designsfx  , thank you again, and with that explanation in mind, I emailed tubedepot with the exact same question, which is something I could have just as easily done before, but didn't think of it.  Part of the aging process I guess.

@yogiboy  , thank you.  Just before you responded I did send them an email.  If they do not respond tomorrow early enough, I will call them before their sale ends.

"High Gain" is just another way for Tube Depot to extract another $2 from a buyer!