All good solid choices...........
Which one can you get a deal on?
Which one is best supported by your LDS?
Which one gives the hose routing you prefer?
Which second stage feels better when you use it (size, knobs, mouth piece, exhaust tee, bubbles)?
Is there a difference in warranty that would impact total cost of ownership?
I'm partial to SP over Apeks.............due to a great tech at one of my LDS's.......
But that isn't a reflection on the performance of the reg.........
Just my thoughts.............M
I dive Poseidon Xsreams as my local cold water reg of choice............
So my opinions may not count.............