Why would he want to ditch the rebreather? With the BC and breathing bags full, it will float like a cork.Seuss:I've read horror stories of people that nearly died because they didn't want to suffer the cost of replacing a weight belt... and a ditched weight belt cost is nothing compared to a ditched RB cost. At this point, without more detailed knowledge of the accident, it is pure speculation that a dive buddy would have been any help at all.