Another brake question

[Goinlow64]

I installed new disc brakes on all four corners of my 64. Being my first time doing a whole brake system and bleeding it, I had a question.

When I push the pedal, the first time is easy push, then some resistance after th initial pump. It doesn't bottom out to the floor but it goes pretty low. The resistance does not change much even after 20 or so pumps.

Shouldn't the brake pedal eventually lock up if pressure is being built up? I have checked for leaks and everything looks clear. The pads are extremely close to the rotor too. I'm nt sure if that has anything to do with this. Ay advice would be appreciated!
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