Now that I have about 100 hours on my RV-8, I thought I'd give my impressions of my autopilot/AP74 and see how it compares to what others have found. First thing - the interface between the AP74, the servos, and the EFIS is first class. It looks good and it's easy to use. However, I don't feel that it is capable of flying an RV in IFR conditions at an acceptable level. In smooth air it is a good work load reducer and allows me to focus on sight seeing, map reading, etc. But when you get into turbulence of any kind pitch oscillations and roll corrections are so annoying that it is actually easier to just turn it off and hand fly. I would in no way consider this an IFR capable autopilot system. I've tried every setting there is in the setup program and the best performance for my airplane is 100% torque and pitch sensitivity of 12/roll sensitivity of 5. There needs to be some other way to adjust or program the servos to dampen out corrections. I don't know what that would be, but don't buy this autopilot if you think it will fly the airplane as well as you can (in an RV anyway). It will point you at your destination at a reasonably close altitude on a VFR day, but that's about it.