Current Projects chat and miscellany

Another question for the more experienced members, I have been using standard Shimano PD540 SPDs for quite a while, but recently have been having some problems with them releasing on me under hard braking.

Have checked the almost new cleats, and virtually no wear, I've tightened the spring tension on the pedals to the max, and its still doing it.

Is this a problem with the PD540 pedals, SPD pedals in general, or just my bad luck for being a heavy fucker?

Are there other pedals anyone could suggest that are less likely to do this?

Time atacs. ^ this (and the fact they're bombproof) is the reason atacs get some much fixieluv™