^@Braufessor awesome (and daring) idea. Bravo.
I've never had Hill Farmstead. I'm not even close to being close to within its distribution. However, I think I can contribute a little on this.
I've been chasing a silky, light (dare I say "pillowy") mouthfeel for a while, especially after trying 3F's Gumballhead. Wow, does that have great mouthfeel (if anyone can compare that one to Hill Farmstead's mouthfeel, I'd be really interested).
Anyway, I use red wheat, rolled oats, and/or rye (often a combination of two), in almost everything, and it does really help. Recently, though, I did a German pale ale (kottbusser), that traditionally has wheat (I used rye) and oats, but I also accidentally undershot my carbonation by a lot. I was aiming for 2.2, and I ended up at 1.9 because I ended up with a lot more beer than I planned. It's plenty carbonated and has a fine head, but the carbonation is a lot more tight, with smaller bubbles, a more fluffy head, and it has a fantastic mouthfeel (round is the word I like to use).
So, even though I've been using the adjuncts we're talking about for a long time to chase this dream, it really was the carbonation that got me there. I of course don't know if I have Hill Farmstead quality mouthfeel, but I think this one is pretty darn impressive. I can't wait to try it on the APA I have fermenting now.