I feel the same. My kids are young so we have to turn it off for them. And of course they both wanted the BBs.I didn’t pay any attention to how to run them until after we were home from our trip- so it wasn’t obvious to me while they built them. I had seen that the BB ones were harder to drive, but that’s all I’d seen as far as differences. Honestly I probably would have still had them do 2 different ones- I mean encouraged them to do 2 different ones lol- since I would prefer one of each. But it’s super annoying!