Font tray
Hi,
I run a 3304HA, I believe the damping is similar on the 3302. From memory there can be a number of causes for the dipping. You say you replaced the foam at the sides of the rollers. I'll just go through some stuff then you can have a look and see on your press. I have had trouble with fluff building up on the front underside of the font tray as the tray contains chilled water the fluff seems to wick the condensation or font or both, if you can take the tray out and wipe the underside that may help. The other thing is you may need a new metering roller, if you have beads of water running along and down the roller when the press is running this is the likely cause, you could try a good clean with meter roller cleaner and a shampoo to deep clean the rubber. If that sorts it in the short term then you need new dampers.
Hope some of this help and who knows might even solve the problem.
Inkyfingers