Emu XL-7 & MP-7 User's Group

Hi, all.

I've started getting the famous flakey data knob behavior.  Not bad 
yet, but getting worse.

Looking at my xl7 message archives from 2002 or so, I see 
recommendations of squirting de-oxidizer stuff on the contacts.  So I 
want to verify WHERE to squirt the stuff, once I've got it.  And I've 
come back to the group to ask:

Does anybody have a photo or graphic with an arrow pointing to the 
ideal spot, and does anybody have any special warnings I should heed?
 
Is this still considered the best way to clean the contacts?