I agree, but barring catastophic gas failure, an emergency where a diver breaks trim or the virtually never going to happen with modern lights situation where all 6 to 9 lights on the team fail, or more likely some other sort of poorly skilled diver induced silt bomb, you won't silt it out if you have solid skills. There are some duck unders in the cross over tunnel and the bottom is very fine silt, but it is not exactly tight in there.
In other words, if a diver does not have the trim, buoyancy control or fin techniques to prevent blowing out the viz, that diver has no business being there in the first place. It goes back to personal responsibility - don't exceed the limits of your ability. Same with deciding to do a small, silty tunnel in Ginnie (and even more importantly in low flow caves) where you will blow out the front portion of the cave - do it in the middle of the night or some other time when there is maybe one other team who would be inconvenienced and then let them know about it in advance so they can anticipate it. Its both common courtesy as well as safe practice.
I also agree the Crossover tunnel is not an area where anyone should be doing visual jumps due to the silt and the potenial for student traffic in either Peanut or Olsen to silt things out. It is also one of the places where the tunnel is short enough that if you jump from the Peanut line to the Crossover, then put in the jump to the Olson line, you can then go back and pull the first jump and clean up the circuit on the same dive, so its even harder to justify a visual jump (that you shouldn't be doing in the first place).
-----
I that regard I do not support the idea of removing lines from some of the smaller siltier tunnels in that section of Ginnie. People will still go there and the need to run their own line will potentially result in more silt, aggravating the problem. I have not done Harry's Crack or the Wormhole, but I really enjoy the Parallel Tunnel. It would be just a bit harder to go through there totally clean if I was also running line, and the effect would potentially be magnified with team members following who may have to stop, start, and or change the pace as would be the case if putting in a line.
Then there is the comfort thing with some divers. As someone stated previously, they feel a lot more comfortable with the reel in their hands. This does not apply to, nor is it directed at the poster of that comment, but it is not neccesarily a good thing for some divers if having a reel in their hands leads them to feel they can contact the cave, and blow it out with less consequence. I'd argue that if they need the 'comfort' of their own reel in their hands, they are not ready to be there in the first place.
with reference to this mishap... he made it through Harry's Crack & took a wrong turn, ending up running out of gas on the Hill 400 line. Siltout is likely.
