[meaubry]

Good - the chains were definately on the centergoal at the Kickoff in Manchester. That was built just as an official one was meant to be built.
No one is disagreeing with that.

Yes - I agree that the chains are there to deter balls from flying straight into the goal - hitting the screen and bouncing back out. I also witnessed the same thing at the VCU webcast as far as ball velocity (too fast). Someone in the other thread similar to this one mentioned that balls shot too slow also bounced back out - so it is obvious that a number of factors may cause the balls to bounce back out.

Yes - this is something that everyone should have considered as part of the challenge. Just as lighting conditions and the use of the camera in poorly lit venues were, last year.

"Everything" can be said is part of the challenge - everything that you can think of that is.

So, if I have this right, the chains are the conditions for entry into the goal that needs to be considered along with the aximum 12m/s exit velocity - which is primarily for safety purposes.