Did you ever try to remove aircraft ailerons and elevators with plans to place them at a different angle, only to find out that too much plastic has been removed (especially in 1/72 scale)?

Try using mini-disc saws that are meant for power tool use, but use them by hand! They are thinner than photo-etched saws, stronger, and you have greater finger control of the cut.

Tip submitted by:
George Athanatos
Kalamaria, Greece