Martin,

Seeing as nobody else wants to look at it I thought I'd put your swing clip on my camera for a look at it in slow-motion.

Not bad at all sir. I presume you're going for a rotary/one plane style swing?

I'm guessing that your bad shots are either a high push or a low hook? Reason I'm guessing is that the video isn't of greatest qualty as you said, but have a look at where your tee goes! It shoots out of frame almost straight right!

To support my comment, I see that your takeaway is employing a lot of wrist roll in the first few feet which takes the club back severely to the inside. You do well at rescuing it on the downswing, bringing it back to the inside, but again too much (hence the tee comment above!) but I'm guessing again that you used to have an "over the top" style pull/slice problem and this is what you've done to cure it.

If I was to look at you over the course of a few weeks your best golf would probably be when you can time your wrist action through the ball. When you don't that's when you push it (not enough wrist action) or hook it (too much).

I suggest at first killing your wrist action to keep the club on a more consistent, slightly more upright (but still one plane) swing.

What do you think?