Grip Wax
Grip wax goes on your fingers rather than the barrel, adding a little purchase without changing the dart itself.
It suits dry hands, cold rooms and anyone who likes a barrel but finds it marginally too smooth. It is also what makes a very lightly cut barrel throwable if everything else about it is right.
Use it sparingly — a small amount is the point, and the aim is a touch more friction rather than a tacky finish. A tin lasts a long time because each application is minimal, which makes it one of the better value things on the shelf, and it earns its place in cold venues where hands dry out and a barrel that grips fine at home suddenly feels different.

