I was in Houston last week & took a class w/the designer, Jean Ann Wright, using her Log Cabin Trim Tool for 8" finished blocks. Is easy to use & worked very well. Will also do half log cabin blocks & court house steps blocks. I like the fact that strips do not have to be cut to exact width or length making it easy to use up my scraps. Would recommend if you're a "gadget girl" or "ruler girl" like I am. Good luck & enjoy.