Derrick:
This fight has shown grappling by itself is not enough to win this competition...
This is true. You also require ST to leverage your grappling.
quote:
...grappling struggles to overwhelm a foe quickly.
This isn't necessarily true. I have a wrestler in a DF game that rapidly overwhelms her foes... however she has a ST of 30 and simply rips limbs off people. That's a bit over the top for this competition (and not possible with chargen rules).
Now, for this tourney a more modest ST (say 14-16) is better and would have had Ping maintaining his armlocks and slowly crippling limbs. But that's because you're using Arm Lock.
If you want a low ST* martial artist to deal out fast incapacitating damage you have two routes: Luck or better chi (like Pressure Secrets, Lethal Strike/Kick, etc).
* Anything less than 19. Unless you're using the optional Rounding Damage Dice rules, then a lower ST can hit multiple dice a bit faster.