Vipul,
I have some more questions.
1. the dec 13 test is after the application deadline for many US schools. do they still take the score even if it is after the deadline?
2. if you forward the score to the universities who don't require subject GRE, does it make your application stronger or it is unnecessary?
3. how long do you think is needed to prepare for the test?
Thanks for the help,
vlsi