Karl,
We have a regatta this weekend also.
Since i am the only FX out this week end I will be racing with the Tiger fleet. We have 11 Tigers signed up and me on my FX One.
Will be interesting to see where i place in the fleet.
Make a note of your rigg settings and i will do the same. I am beginning to get an idea of where to set the boat up.

Last event I went with,(using a Loose LPT-1 guage)
Shrouds 15
Diamond wires 33
Spreader rake at 50mm
Mast rake-third hole down on fore stay(10 hole adjuster) and fouth hole up on shrouds.
The boat definitely performs beter when I increased the diamond tension a few months ago.

This weekend I am going with,
Shrouds ??
Diamond wires 38
Spreader rake at 50mm
Mast rake-2nd hole on fore stay and third hole up on shrouds.

I am trying alitle more mast rake because the helm is neutral or slight lee.
The sail shape seems to get better each time i increase the diamond tension. I'm sure there is an optimal position and soon i will probably pass it.

Oh one other thing, I tried the FX with my Tiger(F18) spin on Monday. It was 4-7, mostly light air. Any way it did not handle well. Very sluggish, somthing with the cut of the sail probably. Had to try it though.

Later,
Mike