Munitorum Mk III Sapper Shovel

Funny, my experience has been that the Mk7 feels slower than the standard.
Supposedly the Mk3 also had a faster activation than the Mk7.
Are there any datamined stats somewhere on how exactly their attack timings are?
If so, we need that here for Science.
Or any declaration of intent from someone at FS, but I highly doubt we’ll ever see that.