By backing up your belay loop, you are trusting yourself to correctly attatch said backup .... and relying on one's untested home made belay loop!
Kezza, we do that anyway: tying slings with tape knots, tying our ropes together with overhands (or plaiting them as Dalai suggests). If a climber can't trust their ability to tie a few simple knots correclty, then they should give up the game. Developing such competencies is integral to trad climbing. Tying a sound knot in a loop of spectra is a skills any competent climber should be able to execute. andyR |