Gurney's Winmau range is built around a single 23g barrel rather than a spread of weights, which tells you it replicates a playing setup rather than filling a product grid.

That barrel is 54.6mm and 6.35mm — one of the longest and slimmest darts Winmau make. The length is what allows the diameter, and a narrow barrel takes up as little of the treble as a dart can.

It is also back weighted, which almost nothing else is: the mass sits behind your fingers, so the dart holds its line and arrives flatter rather than tipping nose-down. Worth trying if you throw hard and have found darts dropping shorter than you aimed.