I bought some 4" squares off ebay once and made a baby quilt and it worked well. But...I also pre-wash so would now think twice about it. I have the Go machine too and I think you might want to get the larger machine if you are doing this as a business.

I sell pre cuts on ebay, so I know I would not buy any.

Never have bought precut nor will .... love the whole process iof quilting, even cutting!