A couple weeks ago I forged a laminated billet of W2 and 416. When it cooled down after drawing it out, it curled up like a banana. I figured I had forged it too much on one side, but I've never had something warp like this, so I hammered it straight and normalized it. It still curled up. Every time I've had the oven hot in the last couple weeks, I've either normalized it or annealed it, hoping that would help, and it just won't stay straight.
I finally figured out why. I put the W2 on the outside! Aaargh! So it's a billet of 416/416/W2. Yep, I'm not perfect, and I'm not too proud to admit it. I hope you all get a laugh out of this. I know I did.