Indeed, 'Short Time' means until enough sales warrant a production run. So, the discount applies to pre-orders (prior to the production run) and thus is for a limited time. The units provided are full versions, unrestricted in any way. Sorry for that confusion.
About sync speeds. It all depends on the Fuji implementation. Normally, above around 1/320 you have to use HSS, due to the physics of the shutter. Once Fuji implements HSS in the flash protocol, we plan to adopt it. We believe there will be no great difficulty to support this, but, can't state support until we have a working unit from Fuji. The radio itself is the fastest in the business. It can trigger in as little as a few hundred microseconds. This is fast enough to support a variety of implementation options that Fuji might use.
Best regards,
John Poremba, Founder Serene Automation