DevonDiver
N/A
WTF is a "Comfort harness"??.
a.k.a. "wallet lightener".
The only 'comfort' it provides is to your retailers profit margin
To the O.P.... Try doing some searches for 'Balanced Rig'. You need to have an awareness of your weighting requirements, plus what amounts of that weight should be ditchable before deciding on ali or steel backplates... or whether to add other non-ditchable weights to your rig. There are plenty of online resources that will help you work out your requirements. It can be time-conuming to do that research - but hey, who ever said that approaching diving from a technical mindset was going to be uncomplicated?
As a general rule, start simple and only make your kit more complicated if you have to. Metal backplate and HOG harness fit that critieria. You'll appreciate the reduced task-loading when you take the tech courses.