If you want to record metal shows without distortion, don't bother with the internal mics on the Zoom or anything else with internal mics. Those things are designed for recording lectures, maybe a band practice here and there, not super-amplified loud music.
I record my rock band rehearsals at close range, with the guitarist using a Marshall stack and a Fender Twin Reverb, the bassist using a 400+ Watt amp and the drummer pummeling away, and the H2N does a good job of capturing it without overload. If I didn't have pro attenuating earplugs in, I'd be deaf when I leave.
Set the H2N's levels down between 1 and 2.
For under $150 for an H2N - Sam Ash was closing them out last week for $129 - you can't go wrong.