Me too. Although I must admit I tend to use my thumb to feel the grit to determine which one to use.
Neil (yet another one...)
On the board now:
Airfix 1/35 Alvis Stalwart Mk2 FV622
Hobby Boss 1/350 Surcouf
Hobby Boss 1/350 Soviet Alfa class
Hobby Boss 1/350 USN Los Angeles
Mikro Mir 1/350 HMS M1