In reply to Morgan Woods:
Another vote for the BD screw roll/bag. So easy to use.
I got some 360's resharpened on the Intersport Grivel machine in Rjukan last week and it really was money well spent. I was amazed at the ease with which the screws bit afterwards. I guess we just get used to the slowly cumulative bluntness.
I have had my share of time with screws skidding around and fumbling on ice - scared of dripooing them/ scared of falling/ muttering "Go in you bastard" - keeping them razor sharp and in tip top nick is deffo the way forward.
I did have a DMM screww for a short time before I lost it and although not a turbo type model, I was very impressed with its bite. DMM really need to bring out a screw with a whizzy handle - with their pedigree they would be on to a winner.
In tghe meantime I will be getting new BDs for the next season.