Disc Wheels in the Wind

So I know that a disc wheel actually makes the bike more stable in windy conditions (by virtue of shifting the pressure centre of the bike, and presumably via an gyroscopic effect vs a normal wheel).

However, at what wind speeds do people tend to forgo a disc in favour of a shallower rear (and appropriately matched front)?

Disc no matter the wind, just change the front if needed.

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I just basically asked this question to best bike split when planning my tri. I was getting no time decrease for adding a disc over a rear 60. They told me that it’s because there was too little wind on the course. The more wind there is, the more a disc will help. They didn’t go into the rotational momentum enjoyed by a disc no matter what the wind though.

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