I attempted to cut one of my wing spars with the olfa knife and may have messed it up. On my initial pass, the angle aluminum I was using as a guide moved about 1mm. I ended up having two areas where it goes from 209mm to 208. From the way I read the construction standards this is past tolerance. Is it worth a call to Caleb to see if this still usable? I Had a bad feeling about attempting this with the scoring knife when I started...should a listened to my gut!