I have a [hopefully positive] update! I went back today and was re-fitted by a seemingly much more senior person. He actually measured my wrist to floor (I'm actually more or less standard, apparently) and took multiple lie board readings. I was hitting a 1* upright club at the time and it was repeatedly still 1-2 degrees towards the toe, so we settled on a 2* upright fit. As far as shaft was concerned, he suggested a Project X IO 6.0 (110g). The launch was still lower than my current clubs (DG R300), at about 70ft peak, on average. Spin was still low though, peaking at 4.5k.
Interestingly, the upright lie didn't exaggerate the draw/hooks, so I'm much happier now.
Thanks for everyone's input. If there are no further opinions on this new shaft then I guess I'll stop complaining and wait for it to be delivered!