Sorry Abmet. Just saw this. I absolutely love my grill grates. I only have one set that works for almost all my cookers in one way or the other. I was thinking of getting two more sets. I put them up there with a Weber Triangle grill brush, a thermopen, a charcoal chimney and maybe Kosher salt. They can be that essential.
YES. They will definitely make your flare ups go away pretty well. They get so hot and the way the protect a lot of the meat from an open flame helps alot. I will not grill a steak on my Pitboss with out it and I use them on my Summit gasser when I really want a black and blue steak.
You can do them either way but you cannot connect ones upside down with ones right side up just so you know.