I have a 36 min-z that I really like but the cut has been poor. I have been using the wavy blades which I have not been happy with. I do a lot of double cutting when cutting Centipede and st.augustine grass. I have tried everything to resolve this issue since I purchase the mower in 2006. I have changed out the belt; the dealer suggested that the tension on belt be placed on the last link of the chain. This did help a little but no much, I was wondering is there any other blades out there to fit the 36 in mower. I looked at some of previous postings but I was little confused on the blade types, also I have a mulching kit on this machine do they make the blow out kit for this model?