In reply to pec:
> In over 30 years I've never felt the need to have even 1 specific abseil rope, why would I want 2?
Baggy Point, Long Rock :P
As a caver I own 4 x 15m, 3 x 30m, 1 x 45m, 1 x 60m static ropes (all 9mm or 9.5mm) just for caving
I have 100m (purchased, may now by 90m or so of course) of 9mm Mammut el-cheapo static which I have used doubled at shorter places (more reassuring) and for long abseils into Lundy and Fair Head.
It is also in theory my 90m caving rope but hasn't been underground yet (never quite needed it).