Right Arm Elevation Is A Speed Factor
With the help of technology, we now understand that the height of the right bicep plays a role in increasing speed.
In the photo's above, you can see three different heights in the right arm (bicep). The thing to note is Matt Kuchar right is the tallest player, and he has the lowest right arm height.
Adam Scott is next tallest ( left) with perhaps the most stock plane swing, and Matthew Wolf, the shortest, has the highest right bicep height.
Is this because the taller players already have the advantage of height and have a more natural right arm plane for accuracy rather than distance? Well, it appears this way.
My advice to you is push for as much distance as you can control.