I also have a 5 speed. I've experienced the issue going into 1st. I simply go to 2nd then 1st. It does not happen often. It's definitely NOT a transmission problem. It could be the bushing. I'm looking into a short shifter mod. It's really a non-issue to me.

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2003 3.0i White/Black 5 speed Manual.
Options: PP, SP, DSP, NAV, XENON.
Mods: Aluminum Running Boards, 4.6 Body Kit, 20" Style 132 Wheels, Eisenmann Sport Exhaust with Oval tips, Aluminum pedals, Xenonmatch Fogs, M3 Steering Wheel.

Can I have a sip of that HATERADE you're chuggin?