What is the reason to increase stake from 324 to 480? Can't find the answer.
Sea saw mechanism is disabled by block 500.000 to make rewarding more balanced (sea saw mechanics was allowing system to update rewards based on masternode count; higher masternode count, lower masternode reward&higher staking reward and vice versa)
Block reward of 1200colx will be split 60% to masternodes, 40% to stakers from this point onwards.
It was mentioned in the Github 1.1.0 release notes