Math obviously isn't one of your strengths...all of the disciplines you mention are shot in multipals of 25
As for birds not flying over in pairs 4 times in a row...what's that got to do with clay shooting in 2015?!?! The sport maybe started out as game bird simulation, it's moved way past that, as a target sport, a long time ago!!!
Deershooter, listening to you anybody would think that shooting the British Open was compulsory, that you were being forced to pay the money, that someone was making you go there and shoot 120 clays against your will...the fact is, there will be over 1000 people there, from not just England, not just the UK, but all over the world to shoot it, all wanting to win there class, this year, all wanting to shoot well enough to go back on the Sunday and shoot another 75 in the final...so there must be something right about the format !?!?