The trust between the flyer and her bases. Bases are important when it comes to stunting. Their would be no flyer with base(s). They are their to lift her up and catch her when needed. Thank your bases.
Wow cheering isn't a sport? Cheering is the most DANGEROUS SPORT EVER. Much harder than just hitting a ball, shooting a basket, and even playing football! Just remember athletes lift weights, but cheerleaders lift people!