And they are neutral in flavor, I will have to read up more on it. I am running batch two of my scotch ale next week, I am upping the peated barley to 3/4 of a lb and going to secondary ferment with roasted red ouk chips, probably 3 oz.
Completely neutral.
1 lb/5-gallon batch. I buy them in a 55 lb. bag. Mine has lasted a year, so far.
No special instructions, just add them in the mash tun with the grain bill. Just make sure you tell your brewing software that you are using them in the mash so it can adjust the amount of water for when you dough-in as they will absorb some water, just like the grains. BeerSmith even has them in the inventory already. Some guys say to pre-soak them but I have tried both ways with no apparent difference (except that it is easier to just throw them in with the grains)
They are a must when using wheat or rye in the mash, but I throw them in every batch I make because they are dirt cheap and a stuck sparge on a 15-gallon batch really sucks

Also, 1 qt./lb seems like an awfully stiff mash. You want enough water to make sure that you get complete conversion, but not too much that you dilute the enzymes to a point where they wont convert the starches.
I also stir my mash a few times even though I also use a HERMS system simply because I want to make sure that there aren't any dough balls that are not getting converted. I turn the pump off for a minute and use a mortar mixing paddle from HD or Lowes, etc. on my electric drill. It works like a charm but go slow as you have the potential to make an epic mess (do not ask me how I know this)

I would try dialing your system in a little better (enlarging slots, adding more slots, using rice hulls) before spending any time or money on shiny things that say Blichmann on them

I have had the same setup for about 5 years now and I consistently get about 72-75% total brewhouse efficiency. I do not think I can get any better unless I fly sparge (I batch sparge right now) which would require a taller basement (so I can gravity feed) or another pump, or unless I go with an electric HERMS and automate it.