I am new to the forum and new to Mooney as well (and a new pilot for that matter). I bought a 1968 Mooney M20F last year. The PC system works well as far as I can tell. I have to adjust the roll trim every 5 mins or so to stay on track which is fine. I am just wondering how much work it is to install an Acutrak I or II and couple it to my newly installed 430W. I have read several topics on the Acutrak and it seems to work well as long as the PC is working ok but I have no idea about the work / $$ to install one from scratch.