At Knoxvilles, I pulled my plugs...
Some are a little white, from running a bit lean prolly...but they look ok I guess, no expert here though.
I used this to check gap.
It's knoxvilles, but I am not sure its accurate. according to this my plugs are already at ~.020.
I am going to get some new feeler gauges tomorrow morning before i put them back in, just the thin metal deals on the ring at different sizes. Maybe those will show I need to gap them down a bit. So suggestion for closing the gap...just tap down on wood or something?