Why I am looking at these systems. I need a harness that has quick disconnects. Shoulder replacements both sides has reduced my range of motion getting arms in/out of harness. Air travel for most diving so looking for light weight and packability. Usually carry bcd, regs, computer, gauges, mask, wetsuit in 22" rollaboard so need compressability. DRIS having great BF sale on the HOG.
I have the Dive Rite Deluxe harness that has a quick release on the left shoulder, above D ring. They have another version with two quick releases below D rings - the Transplate. I went with the large quick release on one shoulder as it is much easier for me to deal with in dry gloves and just easier to reach. I loved my Halycon pink H webbing, but the DR harness is just so much easier for me.
Maybe the DR Transplate harness would work for you. Can always not use the padding it comes with. On sale at DRIS, too.
TransPlate Harness