Fun fact: You can get the same tuning as a 7-string guitar with a whammy pedal by using it on -5 semitones to alternate between the bottom 6 strings and upper 6
Was playing "Return of Captain EO" and "Separate Sky," both 7-string, and used my whammy (I don't have one, but a Line 6 Pod Go) to get the correct tuning for riffs and the solo. I obviously don't own a 7-string lol