I assume you are referring to the piston kits and not the DI gas blocks since this is the piston section. This system is as light as the SYRAC with the addition of the "bleed-off" function.
Here is my in shop review of the piston kit:
https://youtu.be/HeKg0y628Bs
Here is the field test of the piston kit. It was quieter than a restriction adjustment with a suppressor:
https://youtu.be/Cy5XLr3igaU
I am wrapping up the field test and overall review of the Superlative Arms bleed-off products today. Here is the in shop review of the DI gas block:
https://youtu.be/0y02vdDzRUk
The bottom line is there are real benefits to the bleed-off function, but these benifits/differences are more significant/noticeable with a piston system than with a DI system.