Originally Posted by granny
I am very experenced in collision and repair and never had problems with any of my work cracking but filler can and does crack. I'm more worried about the top of the strut towers. Coilovers aren't easy on anything.
I too am experienced in the automotive collision and repair field. That's why I said use it in moderation aka enough to cover what's needed. The less you use, the less of a chance you have to cracking.
I agree that the area of the strut towers would be likely to see more stresses. I personally would use a metal filler in these areas.