Never been a fan of the metres per game stat - its a real SuperCoach stat and too easily influenced by minutes per game. Also doesn't account for whether the player gets rolled onto his back and a slow play the ball as a result. Quick PTBs and defensive efficiency, IMO, are more important for a prop than metres per game quoted without either number of hitups or minutes as a secondary reference.
Re Katoa v Egan, I think Katoa can cover back row should we get an injury in the outside backs, Egan can cover halves if necessary and, if no injuries, either starts and plays for as long as he can provided they are still positively impacting the team. If thats 30 minutes and the other come on and covers the rest of the game, so be it. I think the use of the 2 hookers gets over analysed sometimes. We just need to find out if 1 of them can become a 80 minute player. If either player shows they can go 65-70 minutes without brainsnaps or tired penalties, they are likely the 1 and we re-evaluate the need for 2 hookers at that point. Luai to play halves in Reserves the first few rounds.