Don't have your setup but wanted to share an idea I saw somewhere else to address the vibrations: set idle up to around 1000rpm. I have the 034 engine mount and Powerflex Hybrid puck. Love it right now (will keep an eye on the 034 as it seems to be the consensus that its crap). Anyway, I have been playing with the throttle to address what seems to be the consistent theme, vibrations at idle/reverse. I have found that if I bring my idle rpm's up to around 1000 everything smooths out considerably. Granted, my mileage will go down but its that or pay for experimenting with different mounts which I really don't want to do.
Side note, if you're interested in the Powerflex Hybrid it will not work with the APR pendulum arm. I had to swap back to the OE arm as the hybrid puck had slots in it that I was not willing to hack just to make the APR arm work with it. The puck is the better upgrade IMO.