there is another way to look at this, forget the arguement about which clock is more acurate, we know the answer to that one!
If a young lad has been keeping a few birds in his garden etc for a couple of years, he may be at school and has caought the pigeon bug and wants to try and racce a few. He finds his local clubs, gets the information he needs.
One club say's you'll need ETS to fly with us the other club say's we use a mixture of clocks, i've even got this old toulet you can have to get you started until you can afford something better!
Where do you think he's going to go?
If both clubs had the same attitude then where would he go? Back to his garden to just enjoy his birds and become another member that never was or lost!