SLOWFLY58:

I don't have the instructions here at work, but I believe they do mention it later on. Yes, you have to cut/sand down the edged so that they conform to the rest of the plane.

I used a small [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXAA64&P=0]razor plane[/link] to do the rough shaping and then 80-100-150 grid paper to smooth it out.

Hope this helps,

tychoc