I wonder whether the Oxycheq ultralite backplate and speed harness can be used with the Hollis S or Dive Rite Voyager single tank wing.
The 11" spacing is pretty standard so it should be fine. However, I dislike really soft wings as they tend to taco around the tank which is one of the reasons I sold off my H eclipse wings. I much prefer the smaller and firmer wings of oxycheq.