I am doing a BOM with Tonga Batiks, the Wing & A Prayer pattern Nature. Anyway, I've had a lot of problems getting needles to go through when machine piecing. I dropped my needle size down to a 60/8 and still have problems.
I do think they are absolutely beautiful, but I made the mistake of doing pillow cases with them and they wrinkle like mad. I don't want to have to iron my pillowcases all the time, live and learn.