Greetings from Singapore! I try to collect, restore, and shoot as much vintage cameras I can acquire. I'm new to this site and recently came across some of forum with similar problems. But so far I'm still clueless how's it done? I need help me in adjusting my Copal MXV shutter speed for my Yashica Mat. See attached actual image of my progress. I have done both the aperture and shutter blade cleaning by removing and re-assembling them so you can say I'm handy in DIY. But this speed adjustments is new to me. I want to do it properly. Your help will be greatly appreciated.