We flew our kitfox for the first time last week, it was the first time ever flying an experimental with a Rotax 582. I noticed that any change in pitch has a big change in RPM during a climb. Is this common? I can lose almost 500-800 RPM in a 200 foot per minute climb. That is with only one person in the cockpit. Almost afraid to try it with 2 people if it is that sensitive to pitch change. What is normal for a 582?