In reply to Blair Keogh:
Two words: massive faff. I find it's also harder to get psyched.
I do recommend trying lead soloing out as it's a good skill (if the shit hits the fan and you need to climb out of somewhere) and jumping off on to trad gear to test the system on my own was really exciting.
It does in theory sound like a great way to get mileage in for training, but I'd personally just use it to clipstick my way up to get to the top, and then just shunt whatever routes I wanted to do on a fixed top rope.
I've only rope solo'd trad once on a safe vertical HVS I know every inch of, that also has an ab point right above it. Setting the ground anchor up took ages, but you can back them up by clove hitching any runners that can take an upwards pull. I used a DM Gri-gri and inverted shunt which I don't recommend (probably not recommended to use two systems either, but a mate used it a shunt a lot). When I modded my gri-gri I didn't leave enough metal in the flap to have a nice wide groove (there was a horrible thin sliver left from drilling into it, so I just cut it off and smoothed it down). You might as well just use a junior hacksaw and wet and dry.
I've done a few single pitch sport routes too. I found it was a pain to pay out slack to clip, so just climbed higher on tnhe botls and clipped in with long extending quickdrawes. It made things even spicier, but they were just easy routes. A few years ago at Wyndcliffe Quarry I completely messed up trying to come back down and strip the pitch above the HVS crack thing, and got a bit stuck close to the ground. I think I forgot to pay out enough slack on the lead line so that there would then be enough rope to reach the ground without abseiling into the ground anchor, or because the route traversed, I took up more of this slack than I thought I would. At a bolt 'lower off', you're not on an end of the rope so you can't easily rethread a sport anchor (that you can't just clip into) without emptying all your neatly coiled rope out of your bag and taking the backup slip knots out.
Post edited at 17:36