I've been sailing uni also this weekend (mast settings remained for 2-up mode) -> rake about the same as Pete however.

The wind was about 13 knots and I weigh 72 kg.

I must say that my experience was not in line with my expectations on beforehand...

I thought I would be sailing slower and higher upwind and slower and deeper downwind compared to an Infusion.
However, upwind I had about the same speed and angle as the Infusion. If I steered higher I had no lift and no speed. But to keep a steady speed it was not easy since a small gust made me lift a lot. -> so eventually I lost ground after a while.

Downwind I sailed as fast but deeper so gaining on them.
Downwind it was easier to keep the boat up to speed, so I didn't loose ground here.

What I was really surprised of was that I couldn't steer higher then the 2-up boat (and I was standing at the front stay). Do you have the same feeling or am I missing something?