[Ravenous Bugblatter Beast]

I'm just guessing based upon things you say, okay?

But here's what I think may be happening. If you're playing the swing and getting a draw with your irons, you're releasing the clubhead and that's fine if you can do it consistently. Hogan made tweaks to his swing because he wanted to eliminate the hook and he was happy to hit a consistent fade.

When you play with the driver, it's got the longer shaft, and consequently you're going to have a longer arc to your swing. Now usually that means for most people the slice becomes more pronounced, but now you're someone who has learned to release the clubhead and get a draw out of it. Now what might happen if with this longer arc you start releasing the clubhead at the same point your arms do with the shorter irons?

The clubhead is going to close up even more, and since you're probably drawing it my bringing your back arm over around your front arm, it's going to pull and hook it a lot more than that shorter iron.

Does that make sense?

If that points out what's causing the problem, well you're halfway on the way to solving it.