damper springs

[Paul Mulik]

One quick question from a beginning rebuilder:

I've removed the damper felts from an upright action but left the heads in
place for now.  When I reinstalled the action in the piano, the heads did
not touch the strings.  Is this an indication that the springs should be
replaced?  It seems to me that they should be strong enough to hold the
damper heads to the strings even without felts on them.

Thanks,
Paul Mulik