I am an intermediate rider and want to put a pipe on my 2010. From people I've talked to and what I've read a pipe should help with the lunge off idle and help add some top end (which is what I want). I have the option of a Dr.D or Yosh system from my sponsor and would like to know if anyone has any experience with these. After reading the Motocross Action test I wonder if the Yosh pipe would give it too much and make it hard to hold on to but I worry that I would regret giving up a few hp with the Dr.D on the starts or wide open tracks. I've had both pipes before and was happy with both of them. If you have either pipe let me know what you think.