Just collected my first honey. I am eager to try collecting pollen and propolis. 2 hives are in their first year.

But curious what effect this has on diverting energy in the hive? Would it slow honey and/or brood production? Are there any disadvantages to collecting these?

This is in reference to using an actual propolis trap (in place of inner cover) and a pollen drawer (closing 3 days per week, as suggested).

I have heard the best time for propolis is fall... what about the pollen - I suppose during the runs in spring and fall?