In article , stuart noble
wrote:
The sort of rail made of plastic which you can bend yourself tends not
to be very free running.


Try cleaning them! :-) I wipe mine down every year or so with Mr.Sheen
and they glide beautifully

IMHO they usually crack where they're bent unless it's a curved bay. And
then the runners jam on the cracks.

--
*Procrastinate now

Dave Plowman London SW
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