I could not get my Tiger to balance after paint.  It was extremly tail heavy witha Magnum 91 4s.  I stripped the paint completly and removed the cutouts in the aft fuselage then covered with ultracoat.  It balanced perfectly then.  You can see my covering and paint method in the other Tiger thread.  Obviously I did something wrong.  I gotta say I am a bit amazed that with that large an engine you still need that much nose weight.  I actually came to the conclusion that the length of the fuse eliminates the Tiger from using paint to cover.</p>