Not an answer about virtual capo-ing, but I still use an actual capo with my JTV-59 all the time. I only use the downward retunings of the alt tuning knob for special needs -- stuff you can't use an actual capo on, obviously.

I've always (40 yrs) been in the habit of capo-ing and never really saw it as a hassle. One thing you might consider if you stay with actual capos is the style. The spring loaded ones are pretty stiff and really clamp down -- pulling you sharp over the fret. I use 2 types -- a screw type, I think it's a Planet Waves, and lately a G7 capo -- clutch type -- stays where you press it. I apply only enough pressure to create clean notes over the fret, and they don't pull sharp...

There's techinque to everything... I use a capo on my 12 string model with 10's and have had good luck.

Just a thought. Now, back to you normally scheduled question...

Dave