I always had a hard time using the phase switch on my guitars. You need just the right tone in my opinion to make it work. For some reason, it just always works on a strat! LOL! Other guitars....I seem to struggle with it.
 
My Carvin DC 400's come with everything. Push pull Active/passive, single coil tap, phase switch. The phased position only sounds good in certain situations on certain tones. It really comes to life in a good way with new strings. It's not something I use often, but it has its place. :)
 
-Danny

my '84 carvin dc200K:
 

 
when i used to gig full time, this was my main axe.
 
the combination of single/double coil switches, AND phase switch on bridge,
gave me a multitude of combinations,
all of which i used.
 
 
i used to wonder why every guitar manufacturer didn't provide these kinds of options.
 
with just ONE guitar,
i could cover almost any tone and style of music.
 
 
 
i then built a custom guitar, based on the brian may style of build:

the cherry burst strat is a true hybrid, built like a chambered les paul, shaped like a strat, it has an explorer headstock, and is a 24" scale length (ala jaguar, mustang or Brian May's red special)
 
at first, i had an EMG SA assembly in it, 
and the switches were simple off/on switches for each pickup.
when they are all on, they are in series, not parallel.
 
i've thought about adding changing these into phase switches (in and out) and using the 3rd knob on the guitar as a 'switcher' ala the old paul reed smith switching, and wiring this exactly like the May red special.
 
 
 

Is that Koa on the DC200?

My G&L Legacy has a push/pull on the volume that does something to the pups in the 3-5 switch settings.

And my DC400 has all the switches like Danny's. And I also gigged with the DC400 and got all the sounds I needed. After gigging with a LP for so many years I often wondered why anyone would want that many switches. But after using the DC400, well I knew then.

Grem
Is that Koa on the DC200?

yes, solid koa
 
body is two piece bookmatched,
neck is one single piece.
love that guitar

batsbrew
 
love that guitar

I almost sent my DC400 back when I first got it. Wasn't use to it after playing a LP for over ? so many years. But I gave it a chance. Man I am SOOOO glad I didn't send it back. It's one of the best guitars I own today.
 
Yep I love mine too!

Welp, now I am thoroughly confused! Push/pull came a day early, so I put it in tonight. Thinking that the phase switch would be a novelty item, I wired it so that in is in-phase. Finish up, tune it and jack it into my Carvin amp to check all the connections. Carvin is set at a generic 7-5-7 on the pots with a presence of 5.
 
In-phase, all connections check (good since I already put the back plate on), then pull out the phase knob... high treble output and LOUDER... Initial "WTF" reaction... so run back through the other switches. The phase switch is only on the neck, so is easy to simply switch the neck/bridge switches to bring them on or offline together or solo either. I got the same effect with all switch settings... treble much more pronounced (expected), but gain increase (not expected). I still need to record this to verify, but now the in-phase seems "muddy as hell" to me, and I am baffled by this.
 
Any ideas as to why this would be? (The pups are a generic DiMarzio D-Activator Bridge/Neck pair).
 
 
Edit: I figured I better test this in detail tonight or change the title to "I discovered cold fusion!" Bottom line is my amp was having a field day with the 2-3K range on those settings, so the signal was not louder. Messing around with clean guitar jacked into my Saffire and using Ozone Insight, the average difference for OOP was -3dB, but for full chords (with both humbuckers' coils in series) there is no power loss, it is simply shifted. I am not sure if I did a wiring fluke here, but the delta for that is minimal.
 
I need to test this further as a few configurations saw a 6+ dB drop, so need to get a feel for what is what, but I was expecting more of a drop.

This is the diagram I used.  It might be useful for tracing out any differences you have using TS Rings + switch ... http://cdn.seymourduncan.com/pdfs/support/schematics/jp_style.pdf
 
I'll try to record a quick, clean comparison for you today to give you a feel for what the result is when wired like the diagram.
 
 

The wiring is no issue, the only thing I installed last night was a phase switch on the neck pickup. I expected a more pronounced drop in output, but never had a phase switch before.

I guess I am more curious what a "typical" out of phase level is now. I actually sent a question to DiMarzio about this this morning as well.

BTW, thanks for the push/pull suggestion! The only two I have in any gear are on my amp.

OK, I guess I skimmed too lightly over the above  
 
Everything is subjective without measurement, but ... when I go out of phase there is what I consider a significant drop in the output level, but not enough to call dramatic ...  lol

Exactly, this is all new to me and much is gear dependent too. The part I neglected to think about when I first tested with the amp is the "bright" knob... it is like a 6dB gain to the sweet spot when out of phase.
 
I got to play with it more on the amp this morning and found some nice "bread and butter" settings that keep the volumes evenly matched. The bright knob is a bit excessive now, but this is like being a kid in a candy store. I could never get the tone right for "Bad to the Bone" and now it is a simple phase switch.