[Closed] Recommend me a chainset for SS racing.

I've been using Truvativ Noir on both bikes for a few years.
Last week I had the metal threaded pedal insert come loose in the carbon fibre crank arm again. The week before I had the metal splined insert come loose in the other end.
This is at least the fourth time I've had this happen. The guy at the LBS is very helpful and changes them for me every time without asking awkward questions about warranty periods.
I can't see this going on for ever though, and it was a bit of an inconvenience when it happened mid race once, so I'm thinking of swapping to aluminium cranks.
One bike's SS, the other's belt drive, and I've already got the BBs, so all I want is a pair of cranks.
What's the lightest and strongest out there ?