Update: I've been experimenting with saddle position a bit, and I think I've got it. I moved it forward about 3 mm, and a preliminary test in the worst-offending shorts I possess (it was worse in some than in others), no mashed girly bits. Not on the hoods or drops either. Yay!

However, I think this just confirmed my original suspicion on the pear/T shape. I can feel a bit of chafing, and while it may be down to the fact that I think the shorts are now a bit on the big side (seriously?), I'm really thinking it's the saddle. There's a 1.5-2 cm chunk I want to take out of either side of it.

The other thing I'm concerned about is that I felt squished, reach-wise, before I moved the saddle. I kept ending up with pain in the upper back muscles from trying to compensate. Who knows, though? I'll see how that feels after my ride tomorrow. It may well be a moot point, as this allows me to sit back.

So: similar width to the Lady Gel Flow, with a cut-out, but more T-shaped. Go.