I've contemplated that, actually, but I don't have the footswitch with it. I'll likely need to switch from clean/dirty for some songs, and if I have to use the onboard OD without the footswitch, that might be a problem.
In regards to the DOD Death Metal, isn't the Digitech Death Metal based on that? My buddy had one, and we couldn't reign it in. And please, no Slayer comparisons. If it makes me sound like Slayer, I am NOT interested! I recently came to the conclusion after listening to a bunch of Slayer covers that I don't dislike Slayer songs, I just dislike the mix they have and the sound they make. Other people playing Slayer is great!