Could it be the videos are a couple of years old. I know when I started they used the X but now they recommend priming all pads.
Bingo! Give the man a prize.
Also, I show priming ANY pad that's used on any type of DA Polisher except the Rupes polishers.
With rotary buffers I teach the 10 @ 10 Technique.
The 10 @ 10 technique for picking up a bead of product with a rotary buffer
One thing I'm known for and that's recommending to others to always be open to new ideas, new tools, new products and new techniques.
I also make it a habit to lead by example, that means "I'm always open to new ideas, new tools, new products and new techniques.
When I worked for Meguiar's, "Meguiar's", a leader in this industry, taught using the X-pattern, so as an Instructor for the Meguiar's you STAY ON MESSAGE. So that's what I taught.
Years later, Kevin Brown started showing people the benefits to priming pads and because I agree and think this technique is a good "Best Practice" and I'm "open to new techniques", I adopted this and have been sharing it for years now as a good best practice. I also don't steal other people's work but instead always give due credit where credit is due
although I don't always see others doing this.
To this point I have Kevin credit for his technique in my how to book on page 61 of the first edition of my how-to book and on page 77 on the new edition of my how-to book.
Here's my article on priming pads... all my articles can be found here by the way, there's hundreds, so you have to do a little reading...
Articles by Mike Phillips
Here you go...
How to prime a foam pad when using a DA Polisher
Here are 3 ways to apply product to your pad.
1. Priming the pad then adding product to work with
Priming a clean, dry pad is considered the best approach for using a DA Polisher because it ensures that 100% of the working surface of the pad is wet with product and working at maximum efficiency when you turn the polisher on. I originally learned of this technique from my friend Kevin Brown.
Priming the pad also ensures that you don't have any dry portion of the pad working over the paint un-lubricated. This really isn't a risk because since you're just starting out you're going to be removing defects a lot more serious than would be caused by any portion of the pad that is dry and spinning against the paint.
Plus, after just a few passes, the product you apply to specific areas of the face of the pad will migrate over the entire face of the pad and it will do this rather quickly when you're on the higher speed settings.
Priming the Pad - For clean, dry pads
Start with a clean, dry pad and add some fresh product to be spread out to the face of the pad. Using your finger, spread the product out over the pad and then using your finger work it into the pores of the pad. Don't saturate the pad, just use enough product to make sure that 100% of the working face of the pad has product coverage.
Work the product around the face of the pad and into the pores
Any extra, take and apply to the outer edge until 100% of the working face of the pad is primed with product.
As an option you can also prime the outer edge. This helps if you're buffing around convex curves or around panels that the edge of your buffing pad may come into contact with, like spoilers, side mirror housings, curved panels etc.
Primed and ready to add "Working Product" to.
Adding "Working Product" to the primed pad
Some people will recommend 3 to 4 pea size drops of product as the proper amount of product to use and this can be correct for
concentrated products or working small sections and if you follow this advice make sure you are not
under-lubricating the surface being worked.
Pea size drops of product
For some products and paint conditions, you may want more product on the surface working for you. Here's an example of dime size drops of product.
Dime size drops of product