with some beers the difference stands out a mile, with my Galaxy IPA for instance, the cornie can be a little harsh especially if it's carbed a bit more than the bottle, but with the FSS they are near identical.
My next go at this will have a different hop in it just to see the difference but I have enjoyed my 2 batches of this. We have quite soft water round these parts and I put this down as the reason I always make decent porters and stouts, never done a bad one, and obviously, darkness hides a multitude of sins......

go on, get it brewed you know you want to.