I think I system that was more analogous to Sawstop, which was a failsafe but didn't affect best practice, would be the ideal.
There's not imperial evidence which system is safer in actual practice. .
Oops. In my defense I was on my second distinct plane trip of the day. And why wouldn't the one that's about empires be the one that starts with a "e?"Just so you know, I believe the phrase is "empirical evidence".
I'm not really even weighing in here, other than to try to bring focus to a fundamental question. I think the uneasiness of the 1000 lb lock is that it allows a practice that is inherently unsafe - leaving linesets out of balance, with a single point of failure (the lock). A 50 lbs lock requires that any out-of-balance condition be temporary and attended to. y.
Does the SureStop brake the purchase line or the lift lines or both?
At the core the biggest issue I have with the super rope lock is the idea that an out-of-balance situation could be left unattended indefinitely. I would expect that to be common in a house w/out a dedicated TD. Or if it were to fail, or a purchase line fails then you could have as much as 1,000# going to the deck.
talk
My question (rephrased) was, how does it hold up when the crew treats it like a dead hang? If it locks 1,000# why would you ever need to reweight your lx? What kind of abuse does a purchase line or t track that was only designed for 50# take when it's loaded down and left for 6 months til someone notices? Is it designed for that abuse?
I'm in agreement with you, the concept of this safety hardware sounds great and preventing runaways while still allowing HS kids to run the ropes is awesome. I'm just wondering (since there's an apparent dearth of actual data on either for or against and a conflict of anecdotal evidence) as to the cost-benefit of standard vs super vs braking headblock. I'm still thinking the headblock has an advantage if for nothing else than to give that "Oh S***" feeling to the kid who just dropped the ball.
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I attended the demo drop of the Clancy head block at USITT in Long Beach. I had the opportunity to talk with the young man doing the demo. This is what I remember that I think he told me. Please do your own research to confirm or refute my understanding and memory.Well, the new Clancy head block would seem to do that. Not noticeable except in a run away.
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