Hi,

My bright capacitor is just 47pf, it adds just a proper amount of highs.
“Chirpiness” comes probably from 3mm thick Big Stabby pick. I play with a light attack but pick adds chirpiness, same if you use metal coin as a pick.

I also wondered about the initial query in this thread.  About how Fender can the amp get?

I have owned several Fender tube amps and currently have both a DRRI and Concert in my home.   

The Overtone is pretty close to Fendery with what I am doing now.  Mild amount of overdrive, bright on rock on.  Treble 5, Mid maybe 1, Bass 5-6.5 to taste.  Gain 5 from trem set at about 9 to 9:30.  Mid boost off.  Klein plus Hollygrail reverb.  The Hall setting actually sounds more like Spring Reverb on my Fenders than does its Spring Reverb setting.

The difference in tone is the compression sound of the Overtone, my Fender concert sounds much the same as what I have described if I use a compressor and FD2 with it.  But the Overtone does get close and has some very nice sounds.  I haven't played Little Wing in quite some time the search for that tone brought it out of me.

Very useful and responsive to picking techniques.  Does well with the SRV, Hendrix type playing.

My cab...8ohm Avatar 2X12 combo Celestion Vintage 30 and G12H30.

Pretty doggone close.  My son works sound for a very large church with multiple services over several days so he knows his sound.  He agreed it is very Fendery in quality.  But it goes farther in other ways, much farther.  While I have found the higher gains sound much better on my LP the light gain stuff and chord work is superb on my strat.  (It has Kinman AVN blues pups n the neck and middle.)