I use an Oehler35, Mike, and I'm afraid Skyscreen = Sail is the operative equation for both of us. If we anchor the tripod *too* much, that wind will also put a lot of stress on where the screen mounting rails fit into the sensor housing. Bad juju for plastic.

So when it starts shakin' I just hang it up for the day unless your range would allow placing a wind "shield" a bit upwind of the Chrono.

`Course then you have a BIG sail to contend with. :-(