I recall initial reports saying the girl he was talking to on the phone said he was ducking in and out of the condo buildings to avoid the rain. Haven't heard that fact repeated since then, but if true, would certainly look suspicious to an observer.
Regardless, it has been proved, by his own background, friendships, and activities, that Zimmerman is no racist, so the profiling nonsense goes right out the window, the idea that Martin caught his attention JUST because he was a yong black male. By Zimmerman's own words, it was Martin's behavior that night, innocent or not, that attracted it.
Martin took much longer going to store and back than it would have taken had he walked straight there and straight back. So he was doing...other things...
Read that a few days ago, several places.
I have no problem with anything you said.