The amount of variety you have is what is making everything speed up, frankly, you are training better than most.
One thing I have been contemplating lately. Nervous system adaptations. I've read somewhere and the sources we're good, that when you train this sytem thoroughly you get stronger without necessarily gaining size. The signals and responses become quicker and stronger.
Example:
Instead of doing 3x10 (at max load) chin ups you'd do 20x5 (at moderate or light load) chin ups throughout the day. This basically does not cause the muscle to fatigue but, at least, generates way more signals in the nervous system; thus increasing it's effectiveness and strength.
You kind of need the proper environment to do this, but this works. I tested this personally at work - I manage an inventory and in between isles I got these bars linking the shelves together - I do a few reps once in a while during the day and it keeps my upper body in good shape.
Nerves are like muscles, but you cause anabolism or development in them by bombarding them with signals rather than a load.
It's the only thing I can offer, cause, frankly, your doing everything pretty damn thoroughly atm.
An example of someone who was good at this: Bruce Lee
Tell me how a man can weigh 160lbs at his prime and lift 70# and hold it for 15 minutes at arms length? Combination of endurance and a nervous system (which is also the mind) that is right up there.
Bruce Lee is a little outdated in the power department, MMA fighters are better because of this now, but he had efficiency down to a key. If you combine his efficiency with your power - :boxing_smiley: