Using a nylon brush (or old toothbrush) does wonders to help those stubborn spots…also along the handle interface. Use gloves, get close and dirty with it…slather it good and use the brush to work it.

I never left the stripper on for hours…only like 20 minutes. I guess it depends on the type of stripper being used. I like fast strippers…I have no patience. I want to see what's underneath all that stuff sooner rather than later