Thanks.
I think the biggest thing I learned from the difficult second round of solos was how quickly everything can go wrong in the final stages of landing.
I think I was helped, in a funny sort of way, by having read lots of back issues of the AAIB reports. It seems that every second report is of a heavy landing followed by a big bounce and a gear collapse.
When the big bounce happened to me (only once, I'm glad to say), I remember being surprised by how quickly it all happened and how little time there is to react - I just rammed the throttle in and went around, which I still think was probably the right call but without all that cautionary pre-reading I'd either have made a different choice or not made a choice at all quickly enough.
Its given me both a respect for how difficult the whole landing thing is and an appreciation for how important it is to hone your instincts as well as your intellect. Still, I hope I won't have to practice those bounces too many times!
Shep