Ted & Phil, thanks.

I didn't phrase my question very well, I see that.

If I presently have a fast (FC) 1-valve system, is that FC valve assembly the same as is used in the 2 valve (not fast-valve) for the on-off valve portion?

Could I just purchase the controller valve & then have a 2 valve system?

Does the 2 valve system require different Raven cabling than the single FAST setup?

Thanks again.