Is this too aggressive with a lot of potential outs?

[mscags]

Looks fine to me. I might even cap third, but that might be a little overdone with your dead fives, but I still probably do it in the heat of battle.

Your question about the river: I still probably pay it off since the pot is gigantic unless I have a excellent read on the player that I was beat. Against most opponents though, I'm calling this down.

Mike