[Mr. Lim]

All I can say right now is that it is challenging to pull off without drawing penalties, but still definitely possible.

It's not a chokehold, per se, because if your opponents know how to react to it, they can still get boulders - albeit much slower.

You need to make sure your team playing defence knows exactly what is allowed and what isn't, which is difficult to convey during Saturday lunch, without ever having practiced it.

You also need to invest the time in explaining to the refs what you are doing so they are going to call it as expected. Some things can be subject to interpretation.

Are you allowed to position yourself at the end of the opponent's SP and let opposing boulders bounce off you so they stay in the SP? You definitely should.

Should you be able to play defence in the neutral zone to prevent your opponents from getting balls that are outside the SP? Yes, of course, but if there are balls near the opening of the SP that you are defending, things get murky.

I also agree that you should be able to box opponents in to their own SP based on how the rules are currently written.

You need to tell the refs exactly what you expect to happen as well... and what penalties should be called in what circumstances.

Our attempt in SF2-1 at GTRE was not really well executed, but enough to prove the concept and learn how to improve on it. We held the opponent to 6 boulders scored, but there are a lot of penalty calls, so it's still very debatable. It wasn't a very close match when you see all the penalties.

I think it will catch on more as the weeks go by, however. Not too many will try due to the penalty potential, but those who can successfully do it will be able to pull some upsets. It might be interesting to see 2nd picks at Champs focused on teams who can play defense in this way effectively.