At the risk of committing heresy, I will offer a comment on the original topic of the thread, 'Why are wing comfort harnesses frowned upon?'
I interpreted the original question as one relating to comfort harnesses IN GENERAL, and NOT why they may be frowned upon for specific classes. If that is an incorrect interpretation, feel free to disregard the comments below.
I own and use an older OMS Comfort Harness, on a steel back plate. I like it for 3 reasons: 1) I bought the rig 'new' an eBay many years ago, and it was very inexpensive- I wanted the plate, and the harness came with it, and I decided to go ahead and use it; 2) it has a left-side quick release buckle in the harness strap, which I find very useful after a long, drysuit, deco dive (it also has a right side buckle which I never touch); 3) after a considerable amount of tweaking, I manged to get the D-rings positioned where I wanted them (and the unnecessary padding removed).
I also own and use an original DR Nomad rig, which is essentially a Transpac Harness with a Nomad wing. After I purchased it, I spent time to remove one of the 2 D-rings on each shoulder strap, and all of the padding.
Having said that, I also will say that I generally DO NOT recommend a 'comfort harness' for divers moving to a back plate and trying to decide on a harness, or divers looking at soft rigs with a 'comfort harness', for several reasons: 1) the extra padding that usually comes with the harness merely adds to the cost of the harness, and is unnecessary for the majority (but not all) of divers I work with; 2) the placement of the D-rings.may be fixed (or limited in regard to adjustability), and therefore limits the individual diver's ability to position them optimally for that individual - in particular, the positioning of the swivel ring in relation to the quick release buckle is a problem for me (too close together), and 3) the attachment of the chest strap to the swivel ring may place the chest strap in an awkward position (e.g. too close to the drysuit inflator), as several have mentioned.
I don't think comfort harnesses are bad / evil / demon seed, I just don't think they offer anything which justifies the extra expense. That is why I don't recommend them. They may be great for some. I find that a simple one-piece harness on a back plate - hard (e.g. metal) or soft (e.g. soft material travel plate) - with 3-4 D-rings works well for me. But, I will also confess, I have set up an AL plate for wetsuit doubles diving, and I purposefully had a quick release buckle sewn into the left shoulder strap, to aid me in getting out of the rig easily.
I apologize that I have nothing to contribute to the discussion of steel vs AL cylinders, or whether or not you are a 'DIR Practitioner', or what would be found in a fundies class. .
I interpreted the original question as one relating to comfort harnesses IN GENERAL, and NOT why they may be frowned upon for specific classes. If that is an incorrect interpretation, feel free to disregard the comments below.
I own and use an older OMS Comfort Harness, on a steel back plate. I like it for 3 reasons: 1) I bought the rig 'new' an eBay many years ago, and it was very inexpensive- I wanted the plate, and the harness came with it, and I decided to go ahead and use it; 2) it has a left-side quick release buckle in the harness strap, which I find very useful after a long, drysuit, deco dive (it also has a right side buckle which I never touch); 3) after a considerable amount of tweaking, I manged to get the D-rings positioned where I wanted them (and the unnecessary padding removed).
I also own and use an original DR Nomad rig, which is essentially a Transpac Harness with a Nomad wing. After I purchased it, I spent time to remove one of the 2 D-rings on each shoulder strap, and all of the padding.
Having said that, I also will say that I generally DO NOT recommend a 'comfort harness' for divers moving to a back plate and trying to decide on a harness, or divers looking at soft rigs with a 'comfort harness', for several reasons: 1) the extra padding that usually comes with the harness merely adds to the cost of the harness, and is unnecessary for the majority (but not all) of divers I work with; 2) the placement of the D-rings.may be fixed (or limited in regard to adjustability), and therefore limits the individual diver's ability to position them optimally for that individual - in particular, the positioning of the swivel ring in relation to the quick release buckle is a problem for me (too close together), and 3) the attachment of the chest strap to the swivel ring may place the chest strap in an awkward position (e.g. too close to the drysuit inflator), as several have mentioned.
I don't think comfort harnesses are bad / evil / demon seed, I just don't think they offer anything which justifies the extra expense. That is why I don't recommend them. They may be great for some. I find that a simple one-piece harness on a back plate - hard (e.g. metal) or soft (e.g. soft material travel plate) - with 3-4 D-rings works well for me. But, I will also confess, I have set up an AL plate for wetsuit doubles diving, and I purposefully had a quick release buckle sewn into the left shoulder strap, to aid me in getting out of the rig easily.
I apologize that I have nothing to contribute to the discussion of steel vs AL cylinders, or whether or not you are a 'DIR Practitioner', or what would be found in a fundies class. .