By pressure when doing the first circles on the 1k, how much pressure are you talking about? For the life of me, I can't think of a simple pressure test but this one: if you were to push with your thumb on an empty soda aluminum can laying of its side, would the can:
- not deform
- deform a little (a quarter inch)
- deform a lot (half an inch)
- be crushed

Again, there probably is a better way to assess pressure than this but that's all I could think of. I must be thirsty!