No problem. I've known about packing.org for a number of years (about since inception, I'd say...)
"If sense is so common, why don't you have any?" I want to ask that question of several people each day, and with good reason. Living in CA has its problems (taxation, the busybodies in Sacramento, the liberal climate, and numerous people "educated beyond their intelligence." I've been told I was "overqualified and undereducated" so many times that I've finallly gone back to school myself. Had to decide what to study...)
From a standpoint of material strength, it really doesn't matter which way the zerk faces when it's located in the cross - so face it to your convenience. It would make more sense to put the zerks in the caps and make the cross solid - but that would require fitting/installing four zerks instead of one, which is why it's not generally done.
I'd not call it "common sense" - more "experience." There are two definitions of "experience" as I use the word...
"Experience is something you don't get until just after you need it."
"Experience is what you get when you don't get what you want."
Fortunately, experience not only (usually) comes with a number of scars, but also with some pretty damn good stories. At least I've not been bored - many things, but not bored!
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