I got a hold of 2 of these the other day. the 721s

my cost was zero

anyone have a good setting

to do say 5th at 700 watts?

don't feel like reading the whole thread.

To drop lower you have to use the --Avalon7-voltage switch in Other Options. I went as low as 10 at which point the 721 would only start enough to run at 1.5THs. Using voltage 11 fired up all strings but put speed around 3.5THs. 12 with -2 as offset was the sweet spot for me with very low power use (and temps) and decent hash speed.