I updated the script into feint_calc, and it now also tells you how much you changed the target's stance by. It is now marginally less crappy. feint_timer is deleted, please download the better-named feint_calc.
Code:
[Roll result: 209 (open d100: 92) Bonus: 16]
You feint high, the emaciated hierophant buys the ruse and twists awkwardly to block the blow that never came!
Roundtime: 3 sec.
R>
[feint_calc: 8 RT, -100% stance.]
Enjoy. Or don't. Whatever.
If you don't like reading info on the repo, the stance changes are additive, not multiplicative. So two -50% changes will bring a dude from full defensive to full offensive, not to forward (25%).