The left row versus the right row. Any guesses ?
Copper on the right guess ^^^
Feel a sugar rush just lookin' at 'em. Nice!
...left. copper is on the left. This is pretty typical where the aluminum tends to brown the tops more consistently - it's a mystery !
From this :)
I only stumbled on it, by accidentally tapping one of the your old blog links on the side of the screen on my tablet. I meant to swipe/scroll.