Personally with strumming it really helps me to hear the strumming pattern.
Justin goes through the strumming pattern for Wonderwall at a rip. At least for me. Now that I’ve got it memorized, I’m sharing videos counting out the strumming pattern at different speeds.
Caveat - I was not using a metronome and I do speed up in almost every instance.
That’s something I’ll need to work on now that I’m aware of it.
However, it gives those wishing to learn this rather complex strumming pattern something to work with at a speed they may be able to follow based on their proficiency. And remember - I’m just a Grade 2 Mod 8 type of guy. 
I have three original videos and two videos which are extended cuts. Hopefully this helps others get a grip on the strumming pattern. I’ve included a visual of the strumming pattern as well. Have fun!
Wonderwall Strumming Slow 1 min 8 seconds
Wonderwall Strumming Middling 43 seconds
Wonderwall Strumming Slow to Middling 1 min 10 seconds
This is purposefully starting slow and increasing speed
Wonderwall Strumming Slow Extended 2 min 18 seconds
Bad video quality but this is kinda a listening and follow along exercise
Wonderwall Strumming Middling Extended 1 min 34 seconds
