guy line tensioners

The self-tensioning guylines seem to have more stretch in them, but this obviously depends on what strength of bungy you compare it too, Much of the bungy I've used on UL shelter is really too thin to last in the long term. I can't yet say how long the self-tensioning guylines will last, but they give you 4-5 inches of reserve stretch, which is usually plenty.

Never used any tensioners on my guylines, and I far prefer to stake the guy lines out at the right tension in the first place, rather than spend the night worrying about the 3" of wobble the stretch is allowing.

Edit to answer Lynn's Q:
Well, yes, once or twice. Once in pouring rain in the snow, as the tent slowly sank in the melting (from warm rain) snow. Another time in 'When Things Go Wrong', as the guy ropes started breaking because of the ice and the wind and the fretting.

It might be relevant to note that the down-wind end corners of most any tunnel tent are held by loops of bungee cord: 4 mm bungee cord! Yeah, we put a bit of length-wise tension in there.

Cheers

Roger, do you getup through the night to re-tension your lines as things cool or get damp??

Edit: I just remembered that Roger C. uses hooped tunnel tents, which are much less prone to sagging than tarps and pup tents.