New stripper

I have not tried any of the new stuff yet, but with the old stuff I would wet the surface out real good with the stripper, then cover it with cheap painters plastic from lowes.
The painters plastic will slow the dry time down on the stripper, and almost all the paint would be gone when hit with a pressure washer.

The effort it takes now to use it I would rather just drag out the blaster. I tried that with terrible results. Like Princess says all it really does now is soften the paint. The old stuff you could just watch the paint wrinkle and separate from the metal.