I've been over-tightening shutter tension springs for ages without realizing it
I was setting up a Minolta X-700 for a customer and the second curtain was lagging, so I kept adding a tiny bit more tension each time I checked it. The real clue was when my mentor, watching over my shoulder in the shop, simply said 'you're fighting the grease, not the spring' and pointed out the old, hardened lubricant in the curtain track. How do you all approach a slow second curtain, do you clean the tracks first every single time?