I am about to embark on making my first Karo Step quilt, so I need some guidance. But, a bit of background first.

I have made several down quilts, including hammock underquilts and wearable quilts, so I know my way around a sewing machine and baffles and all that. I also understand the mechanics of how to construct a Karo Step quilt.

However, what I don't know is:
1. How far apart to make the baffles (size of the squares) for a given thickness of quilt.
2. How much space I should leave open at the corners of the baffled squares.
3. How high the baffles should be relative to the average thickness of the quilt.

The dimensions are 80” long by 48” wide.
I will use 7 ounces of 800 FP down which will fill the quilt to 1.46” thick, call it 1.5”.

So, while I would know how to proceed with a conventional baffled quilt, I have no experience to know the answers to my 3 questions above as they pertain to the Karo Step.