Not that I disagree, because I frequently do the same thing, however the strategy of indexing on the up wind/windward side of the target/plate is NOT without potential consequences!
This works well when you have a stable and predictable wind condition that is coming primarily from around 3 or 9 o’clock. As pointed out, if your speed estimation is off by a few mph, or if there is a slight increase in wind speed, then you should be OK (obviously depending on how large your margin of error can be). However, per my earlier comments, you have to be able to predict how long that wind condition will hold? You must be able to do that because if there is a decrease in speed, or a change in direction, then you can easily go from making good hits, to suddenly missing off of the up wind/windward side. Most shooters are worried about missing on the down wind/leeward side, however depending on the wind conditon(s) there may be just as much risk missing on the up wind/windward side. It comes down to your reading and prediction skillset telling you which one is most likely, or is the probability actually the same for both?
Can’t tell you how many times I have watched F-Class shooters using a up wind/windward side hold, making hits in the X-Ring and the right side of the 10-Ring, to all of a sudden see them hitting the 8-Ring & 9-Ring to the left side because they missed the wind let off or direction change coming.
Stable and predictable wind conditions from 3 or 9 o’clock work well by indexing on the up wind/windward side of the target/plate.
Unstable and unpredictable wind conditions, and conditions that are fishtailing/switching direction quickly, will actually do better with a center hold, as they will give you a margin of error in both directions.
Food for thougt! Also, not trying to say what anyone is or is not doing, just trying to further clarify things from my point.
