[TenTec] Off topic: DRAKE T4X-C alignment question

[Dave Perrin]

Hi-
 Anyone out there who knows Drake C Line that can answer an easy question about the slug tuning of the coils? Or lead me in th right direction is fine, too.
 In short, page 5-2 paragraph 5-8a of the manual: exactly where are you supposed to measure the height of the exposed portion of the slug from? Just on top of the aluminum housing, on top of the rubber grommet, or at the top of the paper tube that extends just above the grommet.
 Reply off list to save bandwidth here,

Thanks,
Dave in NH