I dive hollis plate $140 AUD and an Oxycheq Mach V 30lb wing from scubatoys around $270 USD incl shipping so $375 USD with shipping for the package is a great deal. I dive a 2 piece 7mm in Oz I also dive a stainless steel plate and a steel tank, this means less weight on my weight belt. When travel diving to tropics I use my Ali plate. Can you get a stainless steel plate from them still including free shipping? if so I would consider that over the Ali plate.
Yep I'm going to upgrade to SS. I'm considering grabbing an Al plate as well coz I also do a decent amount of tropic traveling/diving and it would be much more transportable/probably better suited weight wise for a 3mm. You get plenty of lift with a 2 piece 7mm and steel? More I think about it the more I'm convinced that at 30-40m there is still quite a bit of residual buoyancy left in wetsuits as I don't have to massively inflate my BC at depth even diving 8mm so I'm pretty sure that 25lbs would have been enough.