I don't block quilts because of any 'crinkly' look. I block them to sqare up the end product and 'set' the shape so the quilt hangs looking it's very best. Blocking is pretty much essential for show quilts and does nothing but improve any quilted item that is 'on display' for any reason (great for table toppers). For bed quilts, or frequently washed items, I wouldn't bother since blocking only lasts until the item gets wet again.