Looking at the mirage and conditions and taking a mental snapshot goes a long way. If it looks like everything in front of you is moving fast in a wave across the whole scope, don’t shoot. When it’s trickling it’ll be closer to the ground a lot of times. If it’s gusting really hard, it’ll sometimes be harder to see- it will almost look like it’s still so you’ve got to look at the grass and all or find a spot with good contrast. That’s what I do, anyways.