I'm sure that this has come up before, many times. I realize Big A suggests using both. This seems like a lot on the lower back. I've been doing deads this year and it seems to take bout five days before I'm in the mood for any low back work. So, who is doing one of these two, rotating them, doing both in the same workout, or both on seperate days? I'm definitely in the rookie phase, so I am currently seeking muscle gain, not refinement. I'd like feedback from those doing the same, or their advice from when they were. Thanks guys.