Here's Simon training the PRIMAL aspect of the Startle-Flinch response from a sudden, aggressive, one-handed choke attack. Soon to be converted into the TACTICAL aspect allowing various follow- up options such as STUN & RUN!
The S.P.E.A.R. System address reality by training OFF-BALANCE; ON-PURPOSE to develop Relative Calm in a real street attack. You can see how Simon is knocked backwards from the force and is having to deal with the attack from a dis-advantaged position. No fancy 'wax-on; wax-off' moves here!