what would you run for expo on a GP ST, on low / high rates?
Has ST 90, 3.25 oZ on the tail.

This imformation would be usefull to me too. I jus finished one with a Tower .75, and two ounces in the tail.

I run mine on high rates, but you can run it on low too just use less. It's just a matter of personal preference regardless of the plane. If you are flying 3D rates you are going to have to use expo to soften the center.
John