I don't do enough typing on a particular machine to warrant a type slug clean, but every time I get a new machine, I do clean the type, and it always makes a world of difference.

The last slugs I cleaned were on a 1955 Imperial Model T, and the easiest way is with a piece of mounting putty, called Blue tack, but soon to be rebranded Black tack because of all the ink mixed in.

But that also reminds me that I should be doing it on the 4 loan machines I picked up for my next type in!