Depth with the 5.3 ? A lot more than you would expect if you're like me. Seriously, if you're getting 9"+ regularly with the 950 in your soil I would think you will be able to get 6-7" with the 5.3 regularly also, all factors being equal in an open area. NOW where the 5.3 is going to really shine for you (beyond sniping in trash) is in those wooded, tight, irregular spots. When you can regularly keep your coil closer to the ground than a larger coil you can often get as deep, or deeper, than the larger coil. I was really bid on DD's early on but the 5.3 had become my #1 coil by far before it was stolen. Try one out at a familiar spot asap and I'm sure you'll be pleasantly surprised.