Thats true. If you look at the setup on most of the big boys, they run 611 or 601 gyros that allow setting both end points but they run with the servo centered at hover pitch. Thats the best of both worlds. When the do piro's with the torque, they are pushing plus using the torque and you can barely keep up it spins so fast. The best compromise for the 401 is the offset setup with the servo at 90 degrees at hover. Some tail designs are setup for symetrical throw either side of "neautral" some aren't it depends on your heli.

What are you flying?

Here's some reading if you want to dig into it a little.

http://www.futaba-rc.com/team/team-tip-002.html
http://www.ronlund.com/tr_setup.htm
http://www.raptortechnique.com/gyroconfusion.htm