I think these days there are more tall forwards, Daniher, Lynch, Dixon etc. and most sides have at least one. So quoting Gasper/Michael even Scarlet (more recent) etc, who played when there were only a few of these players around is a bit misleading. I think genuine height and or strength is needed, but some players do play taller (like Garthwaite I think). Anyway Balta and Miller are genuine height/weight, so I think the backup is there.You're the one who said guys who aren't 195cm/95kg can't be considered genuine KPPs. As I've shown and THE_GUN has posted there have been players who are sub that height and/or weight that have been genuine KPPs over the years.
Now run along Claws sorry Mopsy