Greg,
You may have hit on something Ive noticed this past season. I use to hit straighter and sometimes left with my irons. The toe was slightly raised at address at that time. Prior to this past season.
I had them lengthened an 1", pro said I was a hair over standard. The clubhead now appeared to be flat on the ground at address. But what did happen is that I hit more fat shots and to the right this season. I may have been better off the former way or perhaps move club to have toe up a bit.
Something to look at this off season. Thanks.

Mike