Agreed.
An order I placed last Friday, got the tracking confirmation same day, but the box didn't go to the USPS until Tuesday. (not a slam against the guys, I know they had their backs to the wall last week).
And even the USPS tracking can be somewhat unreliable... At least from a timing of when they scan / update..
That's exactly what happened to me. I just got my new fluxomizers today, but they sent me the wrong ones. I ordered 808 fluxo's and I got 510's .
Looks like I'll go make a ticket. Sigh...I wish my pre-ordered mods and such would show up so I could actually use them.