Yes, 30 seemed like a lot in the beginning, but it's starting to get harder and I reshuffle every few weeks now it seems.
Don't unvote anyone for me, when or if the time comes that you wish to unvote someone, then please take me into consideration among the potential candidates to vote for.
This was the plan indeed, I feel I want to revise a few votes anyway, and am reading and searching for as much info as I can to make even more informed votes.
Good luck witnessing :-)