Ok I have an old commercial Snapper with a 5HP B&S. There are parts of my yard that is Bahia but mostly St. Augustine. Thats in the front. In the back its whatever grows thats green. I have 3 dogs so like I said whatever that grows is cool with me. However this Snapper is not able to mulch without shutting down. It also will bog down sometimes with the side discharge. I really want to mulch. So I have been looking at Toro, some new Lawnboy at Lowess, and a Husqavarna at sears that has a 8.75 Torque B&S which on B&S webiste is actually kind of considered a commercial engine. However I know the mower design is very important. So any recommendation for a mower for less than 400 that can do this? Thanks!