http://webzoom.freewebs.com/xmuppets.../25rc3test.qst
In this quest file, I have stumbled upon two problems with scripted weapons. The 'Gohma (Laser)' enemy in particular uses a scripted weapon (lasers). Here are the problems:
1) This weapon still hurts Link while he's invincible
2) Rings and Peril Rings do not reduce damage taken from this weapon.