If they suddenly became too soft and were fine before, chances are they might need a service. What mileage/age are they?
But even in this case I’d consider playing with the adjustments a little, just in case.
If they’re new to you, I’d try to set them up first using ALL available dials.
As far as I know, Micro Ti’s have an air spring volume adjuster. This thing is supposed to change the volume of the air spring – when increased, it makes the spring ‘softer’ (more linear), when decreased – more progressive. Try making it more progressive and then go from there.
BTW, is 60 psi that high of a pressure? What do you weigh? I have a Marz 55 CRs and run around 110 psi for my circa 16 st.
Good luck!