Paul,

Thank you for these suggestions. I will look at my set up in the mirror.

I'm fairly certain that my set up is OK but, it is as well to check it.

I know that if I can resolve this fault, my handicap will plummet. I am a long hitter and have an OK short game.

When I sent my original posting, I forgot to mention that, this morning, once the fat shots appeared, I started skying my drives and 3 woods off the tee. This may provide more clues to the fault