Nick,Hi Danny,
Glad to see everything worked out. I cant speak for other manufacturers but generally the standard is 11" on center. The Hollis wings, HTS harness and single tank adapaters follow this.
Thanks,
Do you have a pic of the STA? I could not find one on your website. I hope to see all your gear next week at BTS. You guys will be there I believe. A friend of mine has already pre-ordered a drysuit from you. Sure got me curious!