I am also one to run higher rpm than most people that I have been around, but I rarely go above 4,000 rpm in 1st or 2nd, but will push 3rd closer to 4,500 to 5,000 rpm when merging onto the highway. I generally won't sustain an rpm much over 4,000 rpm. As you say, they don't have much pull above 4,000 rpm.
