I have just fitted Wolfgang's shift knob with Getrag pattern engraved - Wow, it has improved the shift dramatically ! (Just kidding) Quality appears excellent, and it is literally a 5 minute fit. Digits slightly smaller than on 4 speed, but of no consequence, as now people can look inside and exclaim " Gosh, a five speed" ! Cheers, Dale.
The reason the digits are smaller is that the seize of the orb stays the same, but the 5 gear digits are bigger and would be distorted at the edge.
Peter