rocktrom hush to control two amps?

[backyardburial]

Hi, currently playing a triple rec thru a recto cab, and a 900 SL-X thru a Marshall cab. I have a Rocktron Hush in front of an AB pedal, so effectively the hush is working for both amps. I was wondering if the Hush would be better in an FX loop, and if it was, is there a way to put it thru both heads efx loops? Alternatively, I have an NS-2 as well which has the extra inputs and outputs so maybe I could only do it with this pedal. Total loop newbie here...never even used it before on a Mesa or a Marshall, thanks.
Also any thoughts on people using the hush or the NS-2 in loop or in front of amp is appreciated, especially with recto's. Maybe I should have started there? Thanks again