Great question.

I for one have used many devices to help align and improve/grove the swing.

It is down to individuals taste and to what ends you are trying to accomplish.

After all it is you and you alone that will be required to hit the shot under pressure of competition, but on the hole any aid that helps you gain confidence is a good product to use.

At this moment I find a cool glass of lager before a round goes down well!!

I have developed a few products and will soon be launching one on the market, at this moment it is going through its final test faze, but will meet many facets of the golf swing that seems to be missing either from one product to another.

Hope it makes me millions!! And helps golfers improve of course!!