SPDs.
In the market for some new ones.
Normally, Id get another set of PDM 540/520. 352g and £30

They're lighter than new XTR, but then so are the latest touring SPD pedals. Although they're not specified as for MTB, I cant see Shimano making the sealing really rubbish on them, or indeed their not being as strong. So what's the catch apart from the single sided clip in (not a problem Im sure)...
XTR 375g, £90

A520 318g, £30

A600 286g, £50

