I think it would be really cool if the in-game item selection menu would open on the right hand weapon immediately, the game would keep the olden way of weapon changes but still allow good enough players to sneak-in a trick weapon transformation mid fight.

I used to Steam to basically map a macro to the right trigger. The macro

On press:

1. Presses start
2. Waits half a second
3. Presses down
4. Waits half a second
5. Presses L1

On release:

1. Waits half a second
2. Presses start

I need to wait a moment before releasing the trigger so the final input doesn't get dropped, but it works. It takes at least 1.5 seconds but if I wait for the right opening I can get it off mid-fight.

I just need to be careful not to press and hold R2 when I'm in the menu because it will close the menu, turn the character toward the camera, and fire my gun hahaha

But yeah, I do agree it would be nice to open right up to the right-hand weapon.