In reply to Cameron94:
thinking of future use, probably the former- for use on scrambles/easy winter climbs where there may be short steps that warrant pitching, but not longer passages of steeper ground that would justify a 50-60m rope
and where needing to ab off is hopefully not going to be an issue!
so a full weight single rope is likely to see more use for us, i reckon,
but thanks for the suggestions,
gregor