Any sportbike is responsive over 3000 RPM, so keep it under 3000 RPM until you feel comfortable with the throttle. I used to live in Oregon and I won't say I liked it, but it was a different and fun experience to ride in the rain (not massive downpours, but light showers). If you are intending to ride in the rain regularly I would get a large windscreen (double-bubble or similar) and some water resistant riding gear. Soggy shoes suck!
As your MSF class should have told you, the worst time to ride is the first 1/2 hour, when the oil and grime hasn't made it into the sewers. Take it easy; not hard on the gas or brakes, and watch out for railroad crossings, because they are very slick.
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