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hi bill i would just like you to carify a few points you made here. i want to be sure i understand you meaning. are you saying that you should mark the anchor line every ten feet so you have a point of reference if you BT drops dead? how do you adjust for scope in the anchor line, & be reasonably acurate? hank In a message dated 5/21/1999 10:42:21 AM Eastern Daylight Time, wwm@sa*.ne* writes: << Susan, I would hope that when you dive in the ocean you do so off of a drift float line or an anchor line. In the case of a drift float you can knot the line every ten feet and in the case of an anchor line you can mark the depth and estimate your real depth by correcting for the scope (if you are that picayune). Neither of these options requires any artifice other than common sense Unless you are spacially challenged I would think that it is pretty easy to reference approximate distances on a line from the surface. Anyhow, for the sorts of exposures you can reasonably be expected to encounter in the ocean most of your deco is from 50 ft on and the times are not that critical (unless you have a pfo or you are an HFS in which case you shouldn't be diving in the first place). As for risk management, I never cease to be amazed by the lack of judgement and foresight related to thinking through the risks of tethered and untethered deep water diving. Considering through the eventualities in the first place and thinking about your response to the myriad situations that can occur is the real challenge to ocean diving. Avoiding stupid high risk situations, knowing when when to hold em and when to fold em and above all not diving to "prove something" to your peers or yourself is the real mark of a pro. Best wishes, Bill Mee >> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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