btw sometimes I don't find a block in 6 hours and sometimes I find 6 blocks in 1 hour, anybody else got the same thing going on

yes i got 2 blocks in 1 min, and than 4 hour nothing
They should consider doing PoST.. (proof of stake time).. that way staking would be better distributed.
Plus it would somewhat stabilize price more efficiently.
VDPos ends in 4 days... So it's not a concern.