Alex,
I had lengthy conversations when I was building with the designer of the plane (not CJM, they did not design it, they only manufactured it) and the design is wonderful, providing the plane is properly manufactured, and light. It is too heavy as a kit, and a lot of epoxy was used during lamination.

You are correct, a lot of sanding and priming is needed, the edges are extremely rough, the 1/2 fuse and wing seems are very rough. There is no structure to install the wing inside the fuse, hence you have to assemble, align and glue the wing braces, which is a lengthy tricky technique since you can only do one side at a time as the model has to sit on its side with the wing pointing up-wards when doing this.

The elevators and rudders installation is also tricky since the pieces of wood and metal provided to hold them are a very loose fit inside them, and you have to do your own fixing and alignment. After that, you need a lot of filling and sanding since the edges where the elevators and rudders meet the fuse are not a perfect fit, lots of gaps.

Be careful with the retracts, the bottom is only held by green loctite to prevent them from twisting. Mine twisted on the first outing to the field. When I asked CJM they said use green loctite to fix it in place.

Mine also had the wing skins as received from CJM bubbling up, or pealing off of the epoxy base and there was nothing I could do about that. When I asked about this I was told that is normal.

I could go on. I spoke with CJM regularly and they under-estimated or under-toned every issue or problem I brought to their attention.

I can zip and email you some pictures. Here is a sample.
Also I have a thread on RCUniverse:


Regards
Peter