Hey guys, I have been going through the forums, and people have been saying that the N90 Woods is more head-heavy than the Voltric Z-force. As I am an aggressive player, I wish to find out if I should continue to use my 4U Z-force or to get a Li-Ning N90 Woods currently used by Lin Dan. Factors that I would like to put into consideration is: 1. Is it more head-heavy than the Z-force and yet capable of fast drives and pushes. 2. How MUCH more head-heavy is it as compared to the Z-force. Thank you.