I love SIA. They are one of my favorite books. Jack is right about the low limits and slow grading. The way I look at it is that if I want to bet more than $500 on a side or $220 on a total, at least I am getting that first $500 or $200 at the better price. The slow grading is a little annoying, but generally it only circumvents impulse plays (which shouldn't be made anyway in most cases) and it isn't like it takes a full day or anything like that to grade.