NZcaver wrote:I only have one hyper bar, so I take the rope over the bar then feed a loop through the bottom of the frame and hook it back over the hyper bar.
Should there be a half-clockwise twist in the loop before hooking it on the hyperbar? I was taught this way and told it was Carroll Bassett's recommended method. Maybe opinions have since changed, or maybe that was made up. It does seem to add additional friction though.
As for other things that can be practiced, here are some suggestions:
simulate gear loss/failure. Do everything you've been doing with an improvised system (Texas?) using cord friction hitches for ascenders and a munter on a carabiner for a descender. You could even practice improvising a harness from webbing while you're at it. Then you'll be comfortable with a system that's great for long trips to short pitches in the far reaches of a cave.
simulate light failure. Climb/change over/rappel blindfolded not far off the ground with something soft below you.
Simulate losing an ascender with no cord for fiction hitches. This one's more of a stretch... Ascend a short distance with only one progress capture. This may be appropriate if you had a serious gear shortage and only a small pitch to navigate. You can use foot-locks or repeatedly tie clove hitches to step in. Basically a single-ascender self-belay but without any slopes or chimneying.
Oh, one other I just thought of. Do your practice run with a hefty pack hanging from you.