I'm currently doing another BOOM but it will be done in tie for me to play here as well. I'm a bit concerned about the difficulty level of blocks. I have been looking at the ones people are considering - I had never noticed that Quilter's Cache had such a variation in their instructions. Some instructions for half and quarter - square triangles are given with drawing a line and sewing 1/4" on either side and some are shown cutting and sewing bias edges. I know I can figure I out the easier way for myself - I just find it odd to still see directions w/bias edges when so few quilters like to sew their patterns that way. I am still lurking and sitting on the fence waiting to see what blocks are involved.