Walters is the only guy in the league that you'd expect to kick 30+ goals as a pure crumber. These days with transition and a less certain starting point, forwards need to be able to handle themselves in the air and on the deck.
You need to be able to lead but it needs to be be your 2nd option not your default setting like fas and elliott, maybe i'm not explaining myself correctly.
E.Betts is already on 28...His default is to crumb using leading as his other trick, often can capitalise off his own aerial mistakes on ground.
Bruest and Rioli both capable of 30+ years if played more stay at home fP like in their early careers.
Think L.Davis (E.Betts, Rioli, Garlett) then Medhurst (Elliott and Faz).
Hopefully that clears it up.