Keyboard switching between full screen application windows

Thanks, I appreciate your reply, but unfortunately none of those give a solution to the problem:

• Various answers regarding keyboard shortcuts for scrolling through spaces; this is cumbersome, slow and exactly what I'm trying to avoid.
• "Mission Control -> When switch to an application, switch to space" doesn't address multiple windows for a given app
• Apptivate tags per app, which doesn't help with multiple windows

I would like an option that's effectively "Treat all windows as separate apps, including full-screen apps" and I find it hard to understand why some accommodation isn't made for keyboard navigation between all open application window instances...

The spaces changing animation is too slow when I want to be switching between applications frequently.

If I use mission control (which is also cumbersome when I want to keep my hands on the keyboard) the shortened titles of a number of app windows are unfortunately too similar to be functionally useful...

Any further suggestions welcome, considering third-party applications as well as this is quite an irritation for me.

Thanks for your reply.

Unfortunately it is too slow for me and requires moving a hand from the keyboard.

I don't want to view every app between the one I am in and the one I wish to reach... it's exactly that I'm trying to avoid having to do; it's the same at the keyboard shortcut to change them but with the added time required of moving to/from the trackpad.