Introducing the teams

Let me introduce the teams - or really team, as we'll no doubt set aside our Slytherin-Gryffindor like differences in due course.
B4
James Harrington
Jack Hodgson
Leslie Lam
Shruti Seth
Hannah Wiessler Leas
Becca Bleeze - who is also a structural engineer.
C4
Maria-Christina Bellos
Joseph Ingham
Kalani Wickramasekara
Rachael Fitton - who is also a structural engineer.
...and myself.
 If this was a fight, B4 would have an unfair numerical advantage - but as Joe rightly states, 'we've got Kalani'.
For the moment our bitter rivals are focussing on lighter biomaterials.