Welcome. Cruising around at 3k is just fine. I'm usually at that or higher when on the freeway. But you also have the ability to shift to fifth if you prefer, it is plenty torquey.

As far as swapping riffs, you must do both. I'd keep the 4.10s given the general speed limit in Hawaii. I like the quicker acceleration, plus my E30 is geared the same way.

__________________
03 3.0i mt
89 325is