I remember the Syncronic BOV was patented by Peter Johann Medina who was super smart with these types of things (and had several patents). He dumped Synapse Engineering to some other entity that apparently ran it into the ground.
I am assuming those same patents stopped anyone from making a BOV as slick, and so here we are knowing the TECH exists, but no one is actually making it !?

Insta has people pissed they never got orders they paid for:
Synapseengineering (@synapseengineering) • Instagram photos and videos

Looks like the FB went dead 5 years ago:
https://www.facebook.com/SynapseEngineering/

 

Patent:

US6863260B2 - Piston actuator incorporating partitioned pressure chambers - Google Patents

 

I didnt know to just crush it by a smidge. I crushed mine until the barb touched the body. I can only put the hose half way in. I dont know if i felt the surging but it does feel like it slams shut when lifting from partial throttle. seems fine for the most part.

 

Type S; essentially is a functional copy of an OEM with regards to function, but executes some things better:

The bottom port (boost ref) could be used, or not used, and the twin springs on the top could be tuned very well or either split up. the downside it's a lot of the clones had questionable manufacturing I don't think they worked as well.