yes, sorry, it's Delrin on the predator body.. I coulda sworn the persuit upgraded to an early predator that i dove was aluminum..
I would say it ultimately comes down to shearwater or X1 or Xeo when that ships.
X1 = yellow bright OLED display, small size, no buttons, potted (can't flood), dual depth sensors and rechargeable battery, USB upload and has both vpm-b and zhl16 (uses v-planner onboard)
Shearwater = larger/heavier, large bright color OLED display, user replaceable battery, Bluetooth, either zhl16 or vpm-b in future (at extra cost)
Xeo = best of both worlds! smaller, but with color OLED display, potted and no buttons, but with user replaceable battery. will ship with zhl16 and probably vpm-b later on.