I was just visiting the JD website to look for anything new and when I went to look at the walkbehind mowers, they have remove the listing for their HD45 and HD75 mowers. These mowers had what they called an oscillating deck which could move forwards or backwards to try to prevent scalping. I had talked with my dealer a while back and he said that he didn't know of anything coming, but that there was a trade show in Nov. and sometimes they release information there. Someone just recently posted a thread on a MOD (mulch on demand) deck that is going to available on I think the 757 ZTR. I wonder what is going?