I pulled out two fat quarters from my stash and played with the Go! Cutter using both techniques.
I cut a 3.5 inch wide strip, laid it horizontally across the die and made the cut. I get 10 pieces out of it. Enough for the 3.5 strips that I need and a couple that need trimmed down to the next size of 2.5.
I cut a 2.5 inch wide strip and did the same thing.
There are a couple of issues with this technique; one is that the strips have to be perfectly straight across or all ten pieces are off. Second is that the smaller you go, the less stable the strip becomes.
I trimmed down the fabric to fit the width of the die and made five strips. I then made sub cuts with my rotary cutter starting wih the 3.5 inch length. This will take forever and I have to move the strips off of the cutter to the rotary mat to finish the cuts.
I think the best method is to make the widths first and use the cutter this way. I need to use a Sharpie marker and draw several horizontal lines on the die to align the strips exactly. That's what scares me LOL. The last thing I want are permanent lines that are useless.
Now to make a block to figure out the correct 1/4 inch seam allowance so it comes out perfectly.