More Push Ups?

I did alternating sets of 10 self assisted hand stand push ups and 10 balance push ups with feet on a swiss ball again. 10 hspu, 30 min, 10 bpu 30 min, repeat.

I think I did 3 sets of each total. On my grease the groove plan for push ups, this still seems to be fun but after people show up at the office, I tend to stop.

On another note, I can do a normal hspu down to 8-9 inches from the ground now, but 4-5 inches is still too low. I'm making progress though.