Wow..

Ask your safety officer how exactly these benches contributed to the incidents. Ask him to consider how much worse they COULD have been if on the ground and unrestrained?

I'm the new kid on the block so to speak, but I have fired my plane up both with a bench just like those and without. My lil' old .46FX powered trainer is down right scary to be infront of when I dont have the safety bench holding her back. (Held byhand in other words.)

We use them exclusively at our field, and I am glad of it.