I have a commercial zero turn Toro and a JD 530. The 530 has less than five hours on it. The reason for the purchase is that I have a big hill in the back that the Toro can't negotiate. I bought the 530 with the locking differential and wheel weights and was assured by the JD dealer that this would be no problem. I used to use my JD x85 push mower on the hill and cut the rest with the zero turn. I have had sixteen knee surgeries and four stents just recently put in my heart for two blocked arteries. I still have two that are 85% blocked and told by cardiologist that I should no longer use the push mower on the hill. I'm thinking of trading the Toro and the JD 530 for a JD 748. I'm sure I will lose my butt on the trade but my question is would you guys make the trade? Thanks!!!!