There is pretty much always parachute dropping at Weston.
The sport parachute club is actually military as well.
As far as I am aware, Brize never direct anybody through the zone.
As far as the gliding operation goes - we activate with the Brize controllers at the start of each flying day.
The one or two infringement tend to be on the weekends when aviation activity is busier.
At the end of the day it's a very clearly marked danger zone active 24/7 and unless you're lost (and obviously situationally unaware) it's plain daft to fly through it.
I find it very difficult to believe that Brize Norton would clear anybody to fly through the zone knowing that there is a Dornier kicking out great tranches of free fall parachutists. A helicopter also dropping jumpers and winch launching to 2,000' with gliders local soaring.