SAT Reasoning -> Subject Test

Test Preparation SAT Preparation
1

<p>Here's my plan:
Oct 2013: SAT Subject Tests (Phy,Chem,Math)
Nov 2013: SAT Reasoning (SAT I)</p>

<p>Now, in case my subject tests DON'T go all that well, is it possible to change:
1 SAT Reasoning Test to --> 2/3 SAT Subject Tests?
If yes:
1] What are the costs involved?
2] What is the deadline to do so?</p>

<p>Thanks in advance.</p>

<p>P.S I'm an international student and have already taken the SAT Reasoning (SAT I) twice with scores of 2200 and 2230. Any other advice would be thankfully accepted.</p>