I'd like to know why my g-force camlock belts are only good for two years if i get the pull up belts(SFI) but 5 years if i get the pull down (FIA) ??SAME BELTS I'll tell you why because SFI is in the extortion business. plain and simple. they do no testing on any of these products all they do is sell stickers.
That actually sounds like an issue with the manufacturer and the way the cert business works in general, not the sanctioning body or either cert org. G-force certified them to different rules owned by different orgs. Even if each both belts behave exactly the same, the patch they bought from one says 2 years and the other says 5. That's the cert business I know.
There could have been a reason where something unexpected happened in a test and they didn't behave the same. That stuff happens all the time. It could have just been that they tested for SFI, sent their paperwork in with a check, got their SFI cert, and then decided not to go through the whole process all over for the FIA cert.