Skills like hand balancing, hand spins, tumbling, flexibility tricks are serious tricks that can only be achieved through continuous training and practice. Hand spins and flexibility tricks are good way to keep your body in shape even when doing a solo act. While advanced hand balancing and flexibility skills are nicer when done in pair or with a group.
Dan had been practicing some of these skills for the past 2 years, at least. Do you think you can do better in a shorter training time?