Does a windicator really give that much information?
When doing FT in the 80's it was a novel invention at Markyate and a bit of bling on the gun.Not sure that you couldn't feel wind at muzzle without one! something we do now in HFT,helped with a handful of leaves elevated a bit,cigarette smoke and leave movement, branches ;everything you use for windage at distance, and a mainstay of HFT.
Fighter against the 'Dark Arts'
Dark keeps moving in on the day.
Steadily going downhill faster!