Janusz Musielak
Michał Pietrzak
Greg Back
Mike Landau
JH star / Hollywood
Michael Thompson
Ronny North
Przemek Maciołek
Stu Hamm
Kiko Loureiro
Stefan Kuehn / Sound Service
Jose Ferro / ESP Guitars
Michael Ammot / Arch Enemy
Makoto Suzuki / ESP Guitars
Holger Lesser i Goesta Grabau / Sound Service
Steve Vai
Doug Wimbish / Living Colour