Tough one. How far back up river were you planning on rowing? How long was the slot, 50 yds.? 100 yds.? 200 yds.? Were you at the bottom of the slot? Middle? Lots of things to consider. You were there first but who is to say how many times a boat can work a slot while another boat is waiting to work that same slot? I agree with Grumpyr, we need to communicate more to avoid situations like the gun incident in Forks. If we let each other know what our intentions are then it not only makes for a nice day on the water, it could lead to more "friends" on the water rather than "idiots".