I've noticed my beer start off with good head and head rentention when i pour them from my kegerator within the first month or so. After that it seems like when i pour i barely get a head in the glass and if i do there does not seem to have good retention. Altho the small ring of foam that does appear seams to cling well to the edges of the glass when rotating... This has been happening with all my brews that dont get drank as fast +- 15 beers of different styles. has anyone also noticed this in the beers? Is it normal?