Plath plays well for dolphins, but he's been playing a fair bit of hooker this year. I think his origin form is the best he's played all this year though.
There's a decent log jam at lock for dolphins at the moment.
Plath has been splitting time between hooker and lock... and last year he was playing backrow
Morgan Knowles is a new recruit from Woolfe, so he's been starting at 13 all year
Gilbert is captain and probably more the size of a lock, but has been playing prop
Donoghoe has just come back and is in the same mould as Plath, so he also gets minutes at lock
Ray Stone gets played at prop, but he's way undersized, so basically a lock when he's on the field ala Kobe
Oryn Keeley is floating around who I think plays prop, but he's another that his size is more like a lock
Dolphins pack has definitely moved towards the meta with the only decent size provided by Flegler and Molo... DSaifiti has now retired and Kaufusi gets a game every now and then