ayan wrote:Hey Marcos,
Thanks.  

  Did you use a 0.01uF mid cap?  I think that affords a lot of low end and, to me, it would make the "Deep" switch more of an obsolete thing.  I have never had a problem thinking a Skyliner amp sounded thin at a gig, but my "classics" could feel that way some times depending upon the room I was playing and the Deep switch would help with that.
marcos wrote:
Gil,
I converted my 79 ODS´tonestack to something very similar to the 
Skyliner, sans Mid switch, keeping the Deep switch. I find the combination
of Bright and Deep very useful for a more Fender-y clean tone, use it for recording a lot. Bright switch is 180 pF. 
I remember playing half a gig wondering what was wrong, then found out I had plugged into the FET input accidentally. 
 
Just my 2 (Euro) cents
  Marcos
PS I always enjoy your contributions
 
 
Gil,
I guess HAD felt the same way and omitted the Deep switch on the Skyliners.I do use a .01 mid cap, although at first, I felt it made the amp too boomy. 
 To me the Deep switch is not obsolete, since it also reduces  mids while giving the impression of a low end boost. I always use it in combination with the Bright switch, and voiced my Bright switch for this.
As mentioned before, I find this very useful in practice.
Can´t hurt to have both the Mid and Deep switches in a new build,
like the Two Rocks for instance.
BTW I also like the R/J switch, 
I feel it is a unique feature of HADs design, but I guess I could live without it.
                       Have a nice day everybody
                                               Marcos