Plasti-gauge is a tool for measuring your bearing clearences/tolerence. You buy a kit, which comes with some thin plastic type strips that you put into your bearing gaps (say the main caps) in place of your bearing, then torque it down to the usual torque. You then take it back out, and micrometer the plastic. This will tell you how thick your bearings need to be .

From what you have written, I would say the crank is still bent.... . I am not an expert by any means, so I might be wrong, but personally I would take the crank back out and measure it again on its own.