Love the offset capability on my Woods HBL84-2 rear blade with my NX4510HST. The track from my big Titan turf rear tires is nearly 83", so swinging the 84" blade out so it's well beyond the right-side tire comes in handy whenever I want to do that. E.g., to push the snowbank back farther, or to do light ditching, or to windrow scattered gravel on the shoulders back into the road.
Lenny zx11: I'd recommend you take a look at the Woods HBL72 rear blade for your L3301HST. The Woods HBL series is a very well-made "medium-duty" blade. If you just want to do light grading and snow removal, though, you may be fine with a generic, lighter-weight blade.