Firm brake pedal, slow pedal travel

Hello everyone,
I need some advise. I just installed speed bleeders on my '78 RB, bleed the brakes and got really good pedal pressure, no leaks that i can see, my question is, while checking to see if there were any leaks I held pressure on the pedal and it slowly traveled towards the floor. I next rapidly pumped the pedal and retried holding pressure, great pressure and normal travel which stopped and held, is there any thing I should be concerned about with this scenario?
I checked with and without the engine running.

Sounds like your M/C is getting ready to go. I expect it will get worse as time goes on. Sorry, not what you wanted to hear, I'm sure.

Yeah that would really stink, only 1 year old, about 250 miles on it.