I wasn't really talking about saftey. Not much would happen to spectators if your tailpipe failed. I'm just talking about having everything work so that you can have a good day of flying with no hassels. Look there are many things that can go wrong with these models. Why not limit the potential problems by at least 1. The early days of model turbine flight were primative by todays standards, but as all other aspects of the hobby progress, ie electronics, composites, turbines,servos, li-po's etc. , why degress with the pipe. But hey , I'm not knocking it just voicing my opinion. I wish Flyticoun the best of luck with his pipe.