Weigth is how many coins is on staking.
So Netko gain weigth if everybody who staking keep they new coins
Inside your wallet you do not need to do enything
Yes every newly genereted coin need 301 confirmation to be mature
Wait,
I've looked at the rich list: people with 20-25K Netko verify 3-4 blocks per day.
How's that possible with one address as they do?