[Blarg]

Cool, Stuey. Your concentrating on form is absolutely the way to do it.

I wouldn't worry about hitting a plateau or going slightly negative. Like you note, it happens. It's the norm, not the exception.

You might try some one-armed push-ups to see if you can stimulate your muscles differently. It might spark progress in your regular push-ups. It's definitely difficult, and I can see it's putting some meat on me. Also, some push-ups on your fingertips or with your feet elevated add more difficulty, and at this point maybe that would be really good for your training.