OK, I'm joining the club. I have F2K, HGT, Count-Down, Space Shuttle, and now my newest edition, High Speed. HS is by far, my favorite, and I've owned JD, TAF, BSD, and STTNG. I just finished a CPR play field swap and added Jeff's nice clear ramp. Also, mod for stop light. I have one issue that someone might know. When I go into test mode, the sling shot coils fire rapidly. I sent MPU for repair and only one transistor was bad for upper left pop bumper. Will put back into machine later this week, but hoping to see if anyone else has had this problem. Thanks for any help.