I bought a 990 when the clutch on my DC790 finally failed. Used this thing to hell and loved it. 5 stars across the board. I was hoping to have the same experience with the 990. When I opened up the new drill I loved the feel, the balance and the power it gave. However, once I got used to the mechanical clutch on my 790, I was certain the drill had a faulty clutch. I sent it back for an exchange, got a second drill and experienced the same thing. After a little research on many forums, I found…