YES! These 2 points are something I personally very very want. I self vote myself a LOT, a large reason is because SBD is so high right now, and upvoting others and seeing curation reward in SP makes me sad when I know I could've gotten so much more if half was in SBD and then buy Steem and power up!

The thing about 7 days, basically have a 10% rewards pool for it. Curators gain no curation rewards and can only vote with a maximum of 10% of their power, regardless of how much SP. Each month, the 7 days+ posts share the 10% rewards proportional to the amount of shares they have (using the shares system I mentioned before).