YouTube trick for screen off playback on note 4

So I made a cool discovery. If you want the stock youtube app to play with screen off, answering a phone call with the popup panel while youtube is playing, then letting the screen turn off by auto sensor (not by manual turn off but by putting the phone to your face), then letting the other party end the call, will resume youtube with the sound playing in the background with screen off when the call ends. screen off youtube is something long coveted by youtubers, but will now get your 3rd party app pulled from the market. so to find this trick to do it on the stock youtube app was pretty funny imo. AUCU2COC6 is the firmware version I'm running. not rooted, stock everything, so SHOULD work for you.
there's possibly better ways to trigger it without calling yourself from a second phone lol, but yeah if you ever wanted to listen to youtube without figuring out a way to pocket your phone without the screen messing up, now ya know.

A trick to improve performance when completely stock?

TL; DR
Disable Android System WebView
Reboot
Profit - let me know it's a placebo otherwise, it worked for me and xperia dudes.

http://forum.xda-developers.com/xper...emory-t3099948

-full rambling

Hi everyone, hope I'm posting in the right section.
Some months ago my nexus 4 broke to a pricey degree and so I upgraded to this beautiful piece of moto.
I had done my fair share of modding on the n4, trying to really squeeze the best out of it, so it was refreshing to move to a device that didn't scream for the development scene it never got, because all would work well.
And it did, except for the fact that almost every time I used the device I couldn't help thinking that this wasn't that much of a performance upgrade from my previous droid. Navigating the interface would always feel a bit stuttery, janky, at times even laggy.
Didn't really feel like rolling back to KitKat as I dig 5.1 so I flew across xda for some research on no-root exploits.
And then, eureka! Some wonderful guys over at the xperia z1 forum found that disabling Android System WebView would help with smoothness.
It did. Reboot and see for yourself! I really think it brought my X to its full potential as no feature is broken. Browsers work like a charm, in fact I just typed all of this from the phone.

Trick App to think Phone is a Tablet?

The WatchESPN app lets you watch live programming. While attempting to watch Monday Night Football, I got a message saying something along the lines of "Not available in this device." (Yes, I have ESPN as home and was able to login with my provider in the app. I was also able to watch the pre-game show.) After further investigation, I found that in the description in the Play Store it says that NFL Monday Night Football is TABLET ONLY. Is there a way to make the app think I am using a tablet instead of a phone?

Nexus 5 running The Pure Nexus Project rom with blu_spark kernel on Sprint.