An information sheet detailing El Ten Eleven's stolen gear in 2013 identifies their equipment. As they were covered by insurance, these pedals may have been replaced, perhaps even with an identical model.

Used by Graziadei in Biohazard around 2001, according to this GuitarGeek diagram.

Som Wardener uses a Digitech XP100 in V Festival 2002 Video and can be seen at 5:50

In a photo of Eugene Goreshter's pedalboard, the DigiTech XP-100 Whammy-Wah is clearly visible next to the Ernie Ball Volume Pedal and DigiTech XP-300.

"After that it goes to the Whammy-Wah, which does, well, whammy and wah stuff. I'm not a big guy for either, so this does the trick for my needs." - Osenga about his Whammy-Wah pedal.

Kengo Matsumoto of THE NOVEMBERS uses the DigiTech XP-100 Whammy-Wah as part of his main effects board, as detailed in a Facebook post by the band. Matsumoto mentions incorporating the XP-100 alongside other effects to create distinct sounds, particularly during key moments in their music.

Has been seen in live Giant Sand performances since 2008. Recently seen in his setup on Instagram 2023.

http://robert.guillerault.free.fr/magma/textes/2010/xtreme.htm (2010):

Comme effets j'utilise souvent le Flexitone [sic] Carl Martin pour la saturation, un Delay Boss, une Whammy Digitech (ou la XP-100) et une pédale volume ; parfois un deuxième delay (Line 6 Echo park) et un vieux phaser DOD.

A fan of Ali Güçlü Şimşek observed his equipment and noted that he uses the DigiTech XP-100 Whammy-Wah, as evidenced by an image showing his pedal setup.

Mendax uses the DigiTech XP-100 Whammy-Wah pedal, as highlighted in the DigiTech Effects Pedals section on their official website.

You can see DigiTech XP-100 on his pedalboard.

As the de-facto lead guitarist, er mando-man, Kang bounces between his Ron Oates Custom 5-string Octave Mandolin or Walker Electric 5-string Octave Mandolin. To amplify his custom 5-strings, he cranks up a Two-Rock Custom Reverb and Groove Tubes D75 Power Amp through a Bogner 2x12 cab. His two-board setup boasts a DigiTech XP100 Whammy Wah, a Electro-Harmonix Micro Metal Muff, a Electro-Harmonix Micro POG, a Electro-Harmonix Micro Synth, a Electro-Harmonix Q-Tron, a Line 6 DL4, a Keeley Phaser, a Fulltone Full-Drive 2, a Keeley-modded Ibanez TS808 Tube Screamer, a Keeley Katana Clean Boost, a Boss TU-2 Chromatic Tuner, a Maxon Compressor, a Ernie Ball Volume Pedal, a Roland GR-33 Guitar Synth, a TC Electronic G-Force, a Sarno Music Solutions Steel Guitar Black Box, and the boxes are powered by a Voodoo Lab Ground Control and a Voodoo Lab Pedal Power 2+. And his uses various Elixir strings and Fender Extra Heavy picks.