Interesting! Thanks! Oh -- and one more thing. What would happen if my chain were too tight (as it seems to be)? What harm would that cause? Could that affect my shifting?
If your chain is TOO TIGHT - the result can be that you hit a big bump, your suspension TRIES to fully compress but is STOPPED when the chain reaches its limit, and your bike is...
1. TRYING to BEND your swingarm by pulling the rear-axle closer to the countershaft;
2. TRYING to pull your countershaft rearward OUT of your tranny, thus wrecking your engine; OR
3. TRYING to lengthen the chain, which it CAN do by 'spitting-out' chain rollers, thus 'saving' your engine but destroying the chain and sprockets, or by breaking the chain which can be CATASTROPHIC...!
NONE of the three is a 'good thing' IMHO...!
I try to ALWAYS measure chain-slack w/ a tape measure BEFORE and AFTER any chain adjustment, and I ALWAYS 'set' my axle by inserting a screwdriver between a sprocket-tooth and the chain, then turning the wheel CCW to move the axle forward BEFORE I tighten/ torque the axle. And then I re-check the slack...!