More speed I can understand, but more pointing I can not. Right now (but I'm gettng better at it) I just point with the F18's and F16's (2-up) and match their speed roughly, on the downwinds I make the gains. You should be able to do so to.

If you can't point with the sloops then something is wrong. To me it sounds like you are suffocating the rig. Is your traveller of centre by at least 4 to 6 inches, if not then try that. Also if you are using a sloop cut mainsail then let off more outhaul to make the lower part fuller and add some downhaul to have the top flatten. Mast rotation in these conditions should be somewhere halveway between rear centreboard case and rudder stock. It is actually one of the first things to reduce (less rotation) if the boat is flightly. Second is downhaul.

Add a few leech tell tales to your mainsail. I did just the day before yesterday and found that I (taveller) sheeted my mainsail in to close and didn't fly the lower leech tell tale. I was sailing with the traveller about 4 inches off centre. The F16 superwing rig really doesn't like it when the traveller is centred on the 1-up (uni-rigged) sailing trips.

The leech tell tales should be placed : halveway up from leech, halveway between top and mid point of leech, in the middle of the upper panel.

Good luck next time !

Wouter