Curious how much vibration/shaking is normal in a stacked washer/dryer front-load set. We installed a set yesterday and everything is level front-back and side-side. It's not walking or anything, and the floor isn't vibrating, but when the washer ramps up to high spin, and again when it slows, there's about a 10 or 15 second period when it runs at just the right torque that the dryer shakes a good bit. The washer doesn't appear to shake, but obviously the movement is getting transferred to the dryer on top.
How still should the set be?