I would like to know which is a good criteria to filter MACS called peaks to keep the most significant ones. I have aprox. 40000 peaks and I already filtered by a %FDR of 0.05 so I've been trying to filter by enrichment. I have tried to keep peaks with an enrichment e, 5 < e < 50, as I read those were the recommended values, though I still have what might be considered as too many peaks for my experiment. Is there another criteria I could use to filter peaks? or, can I be a little more restrictive with the filtering by enrichment?