Russell Giroux is currently tour manager/front-of-house engineer for Default, a band that's been touring almost nonstop for the past three years and is currently supporting their latest release, Elocation.
I love using large-diaphragm condenser mics on guitar cabinets to get that crisp, but thick rock guitar sound. The strangest things can happen during rock shows: losing phantom power to cables suddenly “breaking” or coming out, guitar amps blowing up or even mics going down in the middle of shows. I always have a DI feed from a guitar amp simulator at FOH. I can quickly bring up the simulator channel and the show can continue. If the problem is caused by an amp, this method is also a benefit at monitor world, as the band will only have a momentary loss of the instrument in their mix and onstage instead of waiting for the problem to be combated.