I just tried Simple Green plus isopropyl alcohol for the first time this week, bought a 9.00 gallon of Simple Green from Lowes and a 2.00 quart of isopropyl alcohol from Wal-Mart. Mixed them with 1/2 Simple Green, and 1/2 isopropyl alcohol. This works really well, cleans better than my Storm Reacta Clean, it leaves the ball tacky and removes all track marks and ball return scuffs. So I'm sold, can't beat seeing the proof for yourself, and I've just started this method so totally unbiased and inexperienced at using Simple Green. I definitely like it, way better than spending 70.00 for a gallon of Storm Reacta Clean, I'm able now to focus on what I actually like doing, bowling instead of spending tons of money on cleaner.