Super Cub is not even available any longer... you did a thorough job of researching.
I don't care what Justin Gees father let him do. A 4 year old is not mentally developed enough to fly the helicopters he was allowed to fly. I abhor any age related aviation records. They are stunts and need to be discouraged at all costs.

Remember the 7yo girl on a US cross-country trip? 3 deaths. STOP ENCOURAGING THIS, enough said.