I agree with Jerry. The design is brilliant. My challenge was that my later model 250 has HEI ignition. There isn't anywhere for that wire to attach. I have it taped off under the hood. My other issue was no matter how long I stared at the carb and thought about it, I couldn't find a way to attach the bracket and switch to the carb. I ended up mounting the switch in a hole in the dash left when I removed the factory radio. To go back to direct drive I let off the gas while I punch the switch by hand, wait a second and get back on the gas. Drops out of OD no problem. It's kind of "country" but it works great. I use the OD constantly when driving around town. 2nd gear in OD is perfect for cruising around. As long as I'm not on a hill I can slip the clutch a little and take off in 2nd. Get up to speed (+/- 25mph) let off the gas, push in the clutch, let it out and I'm in OD. I drive it like a 2 speed trans. Using the clutch for OD isn't necessary but I feel like it cuts down on ware and tare.

Thanks

Larry