I had the experience of flying thru turbulence in a 200 ton airplane, and then an hour later a 2 ton airplane. The larger airplane exhibited NO turbulence response. The smaller was bounced all over the place.
While sloping, I've observed any number of serious upsets when one side is in one "bundle" or air and the other in air going a different direction. Much more severe than you will see flying at a typical airfield on the flats..
The larger the sloper also, the less response to these transients.
Watching the wind coming up the slope (the grass motions) it's fairly obvious the wind comes in packets, which at one site are about a standard wingspan wide. Get one wing in one of these while the other isn't, and a 90° uncommanded roll happens instantly!
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"Bigger" airplanes, 25%-45% have more resistance to upsets, either commanded or transient due to their inertias, and consequently feel better when they're flying.