Well this was a long sad read. 7500 miles on my manual and we just starting noticing these problems. Lagging and bogging in 2nd gear around 1500-2500 rpms then it picks up power again as the rpms go up. I asked my wife if she was noticing it and she said yes. Missing/lagging/bogging is not just the way the car drives. It didn't do this before. So there is a problem.