My question is tension. The spec is 0.8 to 1.2" on the side stand. After 4K miles, it was about 1.5" so I decided to adjust it. The problem is, what is "free play" or "slack"? The way I have it set now, if I very lightly push on the chain, I get about 3/4" of free play (total up and down). If I use just moderate finger pressure, it's about 7/8" or just comfortably at the tight end of the allowable range. If I use firm finger pressure, I can maybe squeak a full inch out of it. What's the "right" answer?