I did try this on my own, when it was warm. At exactly 1000 rpm while stationary and in idle, there is a distinct vibration that can be felt through the car. However, at its tickover between 800 and 900 rpm, I don't feel it. I also don't feel it driving along, as 30 in fifth is about 1000 rpm and I've done a few miles like that.
I wonder whether your
problem is not necessarily the vibration, but more your idle speed. If you're idling at 1000 rpm, I believe that is too high. But my car definitely has the same vibration at that particular RPM.
If anything the V5 should be smoother than a four pot, only when really going for it do you get the growl and the shake of the bigger engine.