No one ever gave a good answer to why modding is hard on a saw. I would think that if modding only meant things like crank balancing, and making sure that the ports are as smooth as possible, engine life and efficiency could only go up? If that were all that were done you're not changing the enginearing, you're removing mass production defects, right? I'm sure that theres more to it than that though. Anybody? /forum/images/graemlins/confused.gif