I've replaced my M94 'box with an M97.
The replacement was from a 1999, low-mileage R850R and it does exactly the same.
Sometimes it will shift 2nd to 3rd smoothly, other times it feels as though the change has to be made more slowly, almost as if half the change is de-selecting 2nd, then the following half is selecting 3rd!
It never selects a false neutral, nor jumps out of gear so, until something fails, I'm putting it down to 'character'!