I take my VX, and others, to the Boulder emissions testing place. They tried to put the VX on the dyno and couldn't make it work, know what you mean about anxiety levels as it was bouncing all around. Told them it wouldn't fit the next time and they tried anyway. The last time I told the guy it wouldn't fit the last several times, he checked and did the idle test without going through trying the dyno again.
Last couple of times the road side emissions testing has passed me, so no trip to the emissions place. Wasn't sure I'd be very appreciative of them, but so far it has been good.
Dan