Both high and low volume feeds have their use. You just have to know how to manage them. I use River2 for my high volume feeds while I stick my rarely updated

Both high and low volume feeds have their use. You just have to know how to manage them. I use River2 for my high volume feeds while I stick my rarely updated and "must read" feeds into NetNewsWire. Has been working pretty well for me so far. When using NetNewsWire, I'm in "slow down mode" where just about every item (in theory) is important to me. But when I'm using River2, I'm in "scan and click mode" and just trying to see what the latest news is. Using separate applications like this helps keep me "in the zone." If I were to put high volume feeds in NetNewsWire the temptation to read all the posted items would be too great. In River2, items older than three hours just drop off the page. There's no "unread count" or "read older items" button to tempt you.