I've used pads even before I owned a skimmer, and have never tried running a tank without a filter pad since I started 15 years ago. However, I do notice that skimmer production falls off for an hour or two immediately after I install a new pad. Same with when I put fresh carbon in the system. But after a couple hours, everything is back to normal.
As far as pods go, I have a six-line wrass in my display. I haven't seen a pod in there that he hasn't seen first and eaten. I do have a fair amount of pods in my refugium though.
The way I'm set up, one overflow from the tank dumps directly into the fuge, then spills into the return pump/skimmer area. The other overflow gets filtered through felt and carbon and then into the sump area. I change the filter pad about once a week, and there is very little life in the filter felt - maybe a small snail or small starfish, and the occasional pod. So to answer your question Pat, I don't think the filter felt has much to do with the amount of pods I have.