Hello, guys so I just got into tech diving and am not sure which regulator should I go with for my twin tank setup. The reg needs to have a removable cap because I am training with GUE and this is what they required. Been doing research myself for half a year now and still haven't decided. I know regulators now are all pretty good as long as they have a balanced piston/diaphragm and are the top-line product from a reputable company. However, regulators are important and I'd like to make sure I am getting the best.
So I am diving in Canada and will be doing ice diving. Regs need to be very cold water-resistant. And will probably be doing some pretty deep dive so it better be reliable. Here are the few options that I have, what's your opinion on this?
Halcyon H50+Halo: I am able to get this pretty cheap and I heard good things about halcyon reg. I know it's made by Scubapro but I heard this is an older version of Scubapro? Not many people in my area use Halcyon regulators. (Can get them serviced easily, not a big deal)(Not sure how good they're cold water)
Apeks DS4+XTX50: This is basically the cheapest option that I have now. Not sure how good they're. I heard Apeks first stage has a plastic diaphragm that's exposed to the environment and could get punctured. Not sure how was it.
Scubapro MK19EVO+G260: I heard this is basically the Halcyon but more expensive. In the second stage not sure if G260 is better or Halcyon Halo is better.
Thanks, guys. Really need some help here.