I remember one student bending the engine mounts one by pulling 6.5g out of a wing over. but great learning plane and still the easiest to handle in a stiff cross wind.
I also seem to remember our boss Mike Baker air raced and his was tweaked a bit to about 143kt ias.
I also think 100kts was 19" / 2400. but certainly the figures from Pilot friend don't seem right for either military or civi versions.