Any gauge up to and including bass strings.

After 13's, it's just daft though
ProTone Pedals: Attack Overdrive
Fractal Audio: AxeFX 2
Engl: Fireball 60
Zilla: Fatboy 2x12
Carvin: DC700
Carvin: Vader 7
Schecter: KM-7 MKii
Schecter: Banshee 8 Passive
Jackson: DK2M
bass strings can be cool

i loved 8 is there 7 or 6 ?

Sad point:

Thinner dist. and after 3 days strings just go.. KABOOM