I used to do handstand pushups in high school all the time… it was one of the few things I could do for a few minutes while waiting for my computer to chug along on whatever task it was at. I used to be able to do about thirty. I just tried again tonight and maxed at about eight. I think I must be differently proportioned than other people… I think my shoulders are relatively stronger and my pecs relatively weaker than the average person, it sounds like.
I’m newly interested in learning how to do these free-standing, though. There is a wonderful feeling of control when you can do an exercise like this… and when you stand back up and your shoulders are warm and buzzing, it’s fantastic.