In reply to Alan James, ROCKFAX: For those of us trying to translate between sling colours and Tricam sizes, the following was determined by a brief investigation of the C.A.M.P. web site (www.camp.it):
Size: Sling Colour:
0.5 Pink
1 Red
2 Violet
3 Dark Blue
4 Green
5 Orange
6 Yellow
7 Mustard Yellow
Note that the above sizes do not correspond with those listed on the Needlesports web site, but the overall range looks right (ie eight sizes altogether).
So, based on what people have said here, it looks like sizes 0.5 and 1 may be the most useful?
C.A.M.P. also list the Ball Nuts in their online catalogue. I've heard of these things, but never seen a live one. Anyone ever used one?