All golfers want to hit the ball on the sweet spot of the clubface. You'll no doubt have the best results if you can consistently hit it there every time. The tricky thing is that most golf clubs today are built with the sweet spot out near the toe of the club. You'll find that's the case with a lot of cavity back clubs.
I use blades and the sweet spot on my clubs is in the center, closer to the heel than the toe. So, when I get students asking how to fix toe shots, I have to remind them that they're very likely swinging clubs that are actually designed with sweet spots out near the toe. Gil Bloomer sent in a question asking about this very issue, as he's been struggling with consistency.
I love the video lessons. I'm sure you've addressed this issue in the past but could you please go over the various reasons why shots are hit off the toe. I use a dry erase marker on a few clubs so I can see where I'm striking the ball and regardless of how or where I address the ball, it shows me that most of my strikes are on the toe. I get fairly decent distance but i know I'm extremely inconsistent as the strikes vary from close to the center of the clubface to very near the vertical lines on the clubface. If I am able to consistently hit the sweet spot I know that it's the difference of a full club. If you get a chance, please address this issue.
First, you must remember that whether you're playing blades or contact assisted golf clubs, sweet spots cannot be bigger on one club than on another. A sweet spot is a small, singular spot on the golf club that when contacted will give you the best result. So regardless of the size of the clubhead, the sweet spot remains the same size.
Now, as far as the swing is concerned, there are a few different things that can cause a golfer to hit shots on the toe inadvertently. One would be the setup and address position. Another is the way in which the club is swung. Because most golfers swing outside to in, the natural progression of the swing leads to toe shots. This is another reason why club manufacturers have altered the sweet spot location.