Pedal unclipping when skidding

Just stock up on a bunch of cleats when they're on sale at Wiggle surely? Even full price they're about £10 a pop. £5 each time you wear one out hardly seems an expensive option for a few months use - you also get spares when you buy new pedals etc. etc. - it's not hard to collect a few spares...

EDIT: Assume you're talking SPDs - rather than SPD-SL?

It´s not a money thing, it´s just that having to replace the cleats every 2 or 3 months gets quite annoying. If I have to do that, I´d rather change to a system that works properly and needs less manteinance.

Are you twisting your heel away slightly from center as you skid to swing the back out?

Could be, but if this was the case it should have been happening from the beggining, not months after using them every day.

Try tightening the pedal too.

As I´ve said the pedals are tightened to the max. I´ve been tightening more and more as the unclipping became more usual.

It could be worth checking that your cleats are perfectly aligned so they're right in the middle of the SPD while you're pedalling normally. That will give you the greatest leeway in each direction before they unclip.

I´ll check that. Thanks!

Funnily enough I had to tighten my pedals (m520's) this morning.

As the cleat wears you up the pedal tension or like RJB said stock up.

Are you using the wellgo cleats over the shimano ones?

They wear at an alarming rate.

Yeah, they are some spare Wellgos that I had laying around. I also have some unused Shimanos somewhere.

You think Shimanos will last quite more than WGs?

Try new cleats and turning up the tension to max, if this doesn't work try time ATACs.

I know if I replace the new cleats they´ll work properly, but not for too long.

How long do Time cleats last until they start to unclip? Is it worthy changing from SPD to Atacs (in terms of skidding)?