I ordered a mulch kit for it today. I think that for larger lawns, side discharge will be fine, but if mowing near places you don't want clippings, you need to discharge away from those areas, or be at least 15' away from them when discharging towards them. In a smaller lawn, it can be nearly impossible to keep clippings out from where they don't belong. That's why I'm getting the mulch kit. I'm still going to research OCDCs and if I can find one to work on this, I'll probably get one as well. I did mow my back yard again with it today to practice using it and since I was only taking a small amount off, the clippings dispersed nicely.