The fun in graal is ruined because of jet packs. You want to go somewhere and all you do is take out your jet pack and fly there then come back to start. Nothing seems fun anymore. So my idea is to get rid of them from the trade tables and add batteries. Or gas whatever. Each battery would last maybe 25 minutes from actually using it so it'll last a while. One usage steadily is decreasing the jet pack starts to get slower. And once it runs out you need to go back to the jet pack shop and buy new batteries.