Originally Posted by Ruins

i tuned my ibanez sr405 to drop F with (B 130 ) and it was playable, it was possible to hear what i was playing. fast stuff though you can forget (i am finger player and i am able to play 16 notes on 200 bpm) its just toooo damn low and the string is too floppy.
so low tunings are good for slow grooves with minimalistic work.
i would say like others said if you need something low better get it with harmonics, overtones, your rig tweaking.