wal segment size

Hi,

I see very little advice on tuning WAL segment size.

One of my clients has a few datawarehouses at around 8 - 16 TB

On one of the nodes there are approx 15000 WAL segments of 16MB each,
totalling approx 230GB. The archiver is archiving approx one per second, so
approx 4 hours to clear.

Would we gain anything by bumping the WAL segment size?

Thanks,

Colin