When I told an old Air Force T-38 IP buddy I was thinking about building an RV-8, he insisted that I fly down and take his RV-4 for a flight. He said he would let the RV-4 do all the talking. He insisted that I take it solo.
After a cockpit checkout, I started his 4 and taxied out. The 150 hp fixed pitched RV-4 surprised me by its acceleration and climb out. After a few minutes flying this beautiful aircraft, I felt as if I had been flying her a hundred hours. The controls were responsive but not twitchy and I was comfortable with this marvelous aircraft right away.
I returned for landings. The only problem I experienced was getting the 4 below flap extension speed. I remember climbing at idle power on downwind to slow this slick airframe!
I was ready for a fight as she touched down, but the fight didn't come. I heard a chirp chirp, and she rolled strait ahead. After another touch and go I did a full stop, and still the RV-4 failed to even put up a fight. I radioed the owner and ask: "Where are you hiding the nose wheel"? He radioed back: "Amazing isn't it!"
The RV-4 is the easiest taildragger I have ever flown. I totally disagree that the Citabria is easier. IMHO if you can handle a Citabria the RV-4 will be a cake walk. I have flown a total of three RV-4's of various quality, and all three flew the same.
You are going to love your new 4.