[snapplebobapple]

Those are prone to warping but are otherwise quite nice. You can often unbend them enough, eat least this has been my experience.

[oska]

Interesting to hear about other ppl's experience with warping.

I have some metal combs that I bought 20+ years ago that haven't warped at all (i.e. I have them on the table in front of me right now and they are lying perfectly flat).