The answer is quite simple:
was available in 2008 but all kitesurf brands didn't take care of this new system (we made some proposal to some leader brands without success).
RideEngine started selling DYNABAR
with their custom harnesses around 2014, when become Slinkshot they started to produce their own copy.
When all other brands saw the DYNABAR
was good and gives a lot of benefits all inserted a copy in their catalogue.
Since last year all brands offer it, it shows sliding is the future.
It's quite simple to understand how the market works: a new product can be technically good but it is null if the big brands don't see business and decide it's time to make money out of it. They don't care a lot if JAYSTORE is going out of business, this is the business rule.
Nevertheless it has been great to be the first (in love should be the other way around , so let do it