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We try. But sometimes it is hard, this is true, as we can only select from what we have ;)

Yes, I think some days there's a lot of great posts, other days very few. But the voting power is always at the same rate. I will have to study it and work out the optimum time to post:)

We are trying to use 100% of the weekly available VP. Some days we vote more, some days we vote less. But in average, we spent everything :)