Guys, Looking to acquire my first reg set and I reckon I've got my head around this but I want to check before I part with any dosh...what do I need in the way of ports on the first stage? I'm looking to be able to employ 2 LPI hoses for BCD and dry suit combo once I get to that point. I'm not concerned with transmitters so am looking to employ primary stage 2, octopus, SPG, LPI hose to BCD and LPI hose to dry suit. Just not 100% certain on the difference between MP and LP and how many HP you may need (or come to need). Thank you.