jonny,
Here is a picture of the stab assy. on my 2.3m after I sanded the edges of the stab. The fit is now 1000% better than what it was out of the box!!! As you can see in the picture, I have the stab tubes drilled and tapped and the bolts installed as well. Also when you drill and tap the stabs be very careful when counter sinking the the stab bolt holes!!!!! I recommend putting a piece of masking tape on the stab then drilling through the tape to keep the surface from splintering. If I can find some matching paint, I am going to paint the bolt heads to blend in the stabs. Also I don't recommend using the stock control linkages i.e. push rods and clevises as there is alot of slop in the threads. I am only using the stock push rods for mock up. I will be using the H9 Titanium push rods and Du-Bro H/D clevises. It's no where near done yet and It's my first Composite-Arf but I have been lucky enough to get allot of hints and tips from seasoned Comp-Arf builders. If you have any questions feel free to ask and I will share what I am learning during this build.
Shawn