At less than 1oz per lb of water, the dog's skin was not alright after a long workout session. It wasn't alright the next day, so that tells me the dog wasn't getting enough water.
By the time I actually start my keep R2L, my dogs have been getting the extra water in their food, building up to the actual amount. So, when keep starts, the extra bit of water added to meet the 1oz per lb limit is within reach. When I start the cutdown time on the keep during the last week, the water starts to be cut back also. Since there is limited work going on, all that water would just be extra weight your dog is carrying around, and you would be over weight come show time.