Re: [GooManChew] no tailgate: tape vs ruberband
At Kjerag this year I had a tape malfunction on a slider up jump. Upon opening the tape (four wraps) didn't break, keeping the rear of the canopy bowtied for about two seconds. Luckily, after those two seconds, the tape descended the steering lines before stopping about a half meter above the slider.
I landed without incident, though flaring was tricky. On inspection I found that the four layers of tape had effectively melded together. The tape itself was almost as hard as a rock (no exaggeration). I could not physically tear it with my hands and the only way I could remove it was by peeling back each of the layers.
Note that this was regular white masking tape, about 1.5 cm wide. On purchase I'd tested it when wet and it had no problems tearing. However, when I tested it I tried to manually tear just one layer of tape, not four.
My theory: My best guess is that the glue on each layer of tape had managed to seep through the paper, effectively merging four thin layers of tape into one thick, well-glued layer. I think this was a result of the humid Norwegian air in which I'd been packing.
Since that event, I've switched to using a tailgate and small-mesh slider on all slider up jumps. I use a small, brown skydiving rubber band that's been cut in half to secure the tailgate, and I do not use an overhand knot to secure it to the tailgate (effectively I lose the rubber band on every jump).
For slider down I use the same setup (sans slider).
If I ever find myself forced to jump without a tailgate, I'm sure I will use tape again, but I'll be much more careful with it. For slider down I will probably use 2.5 wraps and for slider up I will either jump without tape or will "pinch" the tape around the steering lines, rather than wrapping it (thanks Sparky for this tip).
I still hear "don't worry - the tape will break. it always breaks" all the time. However, just like with a tailgate, there are times when tape can fail. I suggest you be very careful with both, and if you do use tape for slider up jumps, consider pinching one layer of tape around the steering lines rather than wrapping it.