The last rescue in here was specifically caused by the group being unable to find their way through the system, and they hadn't brought any ascending gear, so were unable to climb up the shaft. So under no circumstances should you abseil a shaft unless either:
a) You can climb back out of it.
b) You can use a guaranteed alternative exit.
Whilst the Artists Corner exit is 99% guaranteed, it won't be if you can't find your way there. Also the shaft is very tight in places - it's a slot, rather than a cylinder, so you also need a team who can handle that - it's very claustrophobic if you don't like that sort of thing, and any larger types will find themselves quite literally filling the hole in some sections.
This does, possibly paradoxically, make it easy to climb out, as you're forced upright, making prussicking more efficient, and there are plenty of hand and footholds to use where practical. Some SRT trips can require improvisation, and this is one of them, but don't attempt it until you're proficient at 'normal' techniques, as we can't afford many call-outs up there. That said, it sounds like you want to do it properly, so good luck with the practice sessions.