I just went through this. At first I was really intimidated by holding the crown upside down and having to cut everything backwards. After a few pieces, I got the hang of it. In my opinion for a homeowner its not worth it to have a double bevel saw. one thing that really helped me was making a jig to hold the crown in the same place every time or else the cuts won't line up properly. You can also buy crown stops if they're available for your saw.