Capo for Superwide Fat Neck?

[Viper Jazz]

Hi, all.  Just finished my Warmoth semihollow strat w/ a superwide fat neck, and I discovered that my capos won't really fit!  A Shubb doesn't at all, and the Kiser just barely does, but doesn't do a great job of keeping it in tune.  Any suggestions?

 

[stubhead]

The old-style (cheaper) Shubb with the little pointy bushing gets bigger than the new "deluxe" ones with the roller, big enough (barely) to deal with my 1 3/4" wide boatneck with 6100 frets.

 

[dbw]

Kyser sells a capo specifically for 12-strings... presumably it can handle a wider fretboard...