A RCD should hit and hold as hard as a CD. A RCD is expected to be longer winded, faster, and cooler running. If a RCD bays out or lets go on you that it should be concidered a rough dog or stop dog not RCD. You should be able to use a RCD as a lead in dog and count on him to give you 100%. With that being said IMO its not a good idea to use a RCD in areas where it could take you long period of time to get to them. Not to mention I kinda like to sneak in and watch a good bay.....