Having re-read everything on Dave's site, I think I'm going to give this a go myself. Two questions: 1. Dial gauges vary enormously in price. For this purpose will any old cheap one do? I guess for the analogue "TDC" gauge, accuracy is irrelevant as it is the movement of the pointer that is important, so should a £10 cheapy one be fine? But what about the digital "lift" gauge? Any recommendations? 2. How do you tell if you have a manual or automatic tensioner? I have a 1.6KSS.