lathe steady rest question.

[PixMan]

I would definitely add metal to make the steady rest fit snug between the ways as there's apparently no inverted Vee way to keep it square and centered as you slide it to different positions. This can be important when you have to move the rest and use it on different positions on the same diameter.

When you add the strips of metal make it so they're a little oversize, then finish mill or grind to a close fit.