If you want hits, I'd take out average and not runs.
7x7 isn't boring, it's popular because it works. I can imagine net saves being very frustrating when setup guys come on with loaded bases. They get put in because they are good but net saves would hit those guys the hardest. If it didn't hurt the Millers or O'Days of the baseball world and only closers I'd be more OK with it.
I'm less anti net SB, I think that makes things more interesting as a test of skill instead of favouring guys who run all the time even if they're bad at it.
Just no to QS.