Has anyone every run one of these with 2 PSU's?
no reason why you couldn't - just use 1 PSU per blade, and power both at the same time
I am powering my miners with 2 PSUs on each. Sushi told me not to do this however this seems like the only way to get best out of them. Single PSU sometimes shutdowns and display a lot of Xs. 2 PSUs seem to power them without a problem.
Electrically there would only be a problem if you had each PSU on a different phase. Used to get this in the old days of RS232 where the printer was a long way from the server as the reference ground volt value was slightly different. It should not cause a problem in a house or single office, I run one of my Ant's on two old 450W Corsairs and it works like a charm.
the 12V DC signal has no phase, it should be a consistent current and voltage from both power supplies. anyways, i doubt any of the 12V goes between the blades to cause any issues even if there was phases