tears the blade screw through the Balsa, widening it since there's no sleeve to help reinforce the hole that little screw goes through!
(This is why the Blade CP blades have the plastic end at the blade grip mount, to stop them from tearing.)
Now you've replaced most of the Rotor Head and have blades that sag and won't track properly because of the reamed out mounting hole in them from the blade screw..

I had the same problem with the blades and the screw. What i did is use my dremal to sand a peice of wood to get sawdust (fine dust) put a peice of tape (scotch tape) on the back side of the blade and filled the hole with the sawdust then couple drops of CA re-drilled the hole. How when i get the stabilizer control hub (from tower) I can check it out and see if it works and tracks right.
Also when I 1st got my CP (used). The covering was ripped so I re-covered the blades with monokote iron on. Wow! They are super strong and take a beating. wont have thestab. hub till Tuesday or Wed. So I will let you know if the sawdust and ca worked. it looks like it will and I sure hope it does.

Chaseman81