Swing Question

[Cut68]

Hi all, new to the forum. I have a question about my swing that I'm hoping I can get some help with. My normal ball flight is a draw (often I'm fighting a full on hook) but when I get aggresive with my swing, usually with the driver, it often results in a push. What would cause this? It is cause for celebration if I hit the ball straight, haven't hit a slice in years, but sometimes when I really get after it, the result is dead straight and to the left (I'm a lefty) Any thoughts?

[The Gill]

If you're swinging in-to-out and you have the face square to the swing path, you'll have straight push. You're not getting the club face square enough to the target line. A stronger grip will fix it, but I'd suggest figuring out the mechanics.