It all depends on what you want. I have an EX-21 and do 32 inch patterns. I switch to a spiral blade and it works well for me. My opinion is what do you plan to do the most from your saw ? With time, patience and practice you can use almost any saw to accomplish the task at hand. The saw cuts the work, but you control the saw and blades. Most of my work can be done with flat blades but the larger pieces I do need spirals. Just takes some extra effort and learning to accomplish what you need for the job at hand.