Okay... while perusing my copy of SS, I stumble across the Alignment Change section, which in my mind is far too small and could have used an example or three to clarify what WoTC meant. So... I'll lay out the groundwork, and you all can tell me whether I've got it straight or not (I probably don't, but hey, that's why I'm asking). 
Let's say I have a 10th level LG fighter who, alas, gets drained by a 15th level CE vampire wizard, and arises the 1d4 days after burial. While still dead, the original vampire wizard is slain. So, when our intrepid fighter arises as a vampire 1d4 days later, he finds himself without a vampire master.
Now, according to my interpretation of the rules (which might not be right, I admit, hence why I'm asking), the DC to keep your original alignment is:
10 + 1/2 goal monster's HD + goal monster's Wis modifier + additional modifiers based on alignment difference
Now... since the vampire's HD would be the same as the fighter's HD before crossing over into undeath, does that mean that it's half the wizard's HD, or half of the vampire wizard's HD? And, assuming a Wis of 12 for the fighter and a Wis of 15 for the vampire wizard, do you use the would-be master vampire wizard's Wis modifier, or the fighter's Wis modifier?
Assuming that everything is based off the fighter's stats, the calculation should be as follows:
DC = 10 + (1/2 x 10) + 1 + 10 (for going from LG to CE) = 10 + 5 + 1 + 10 = DC 26 to resist forced alignment change from LG to CE
Now, based off the original vampire wizard's stats:
DC = 10 + (1/2 x 15) + 1 + 10 = 10 + 7 (rounding down here, since it's 7.5) + 2 + 10 = DC 29 to resist forced alignment change from LG to CE
Now... which one of these is correct, the fighter-based DC calculations, or the wizard-based DC calculations? This would be a great help to me in figuring out for certain just how this is supposed to be calculated.
Note: Edited to fix the calculations. Still would be DC 29, though (since I forgot that 15 gets a +2 modifier for stats and erroreously put 1 instead).

Let's say I have a 10th level LG fighter who, alas, gets drained by a 15th level CE vampire wizard, and arises the 1d4 days after burial. While still dead, the original vampire wizard is slain. So, when our intrepid fighter arises as a vampire 1d4 days later, he finds himself without a vampire master.
Now, according to my interpretation of the rules (which might not be right, I admit, hence why I'm asking), the DC to keep your original alignment is:
10 + 1/2 goal monster's HD + goal monster's Wis modifier + additional modifiers based on alignment difference
Now... since the vampire's HD would be the same as the fighter's HD before crossing over into undeath, does that mean that it's half the wizard's HD, or half of the vampire wizard's HD? And, assuming a Wis of 12 for the fighter and a Wis of 15 for the vampire wizard, do you use the would-be master vampire wizard's Wis modifier, or the fighter's Wis modifier?
Assuming that everything is based off the fighter's stats, the calculation should be as follows:
DC = 10 + (1/2 x 10) + 1 + 10 (for going from LG to CE) = 10 + 5 + 1 + 10 = DC 26 to resist forced alignment change from LG to CE
Now, based off the original vampire wizard's stats:
DC = 10 + (1/2 x 15) + 1 + 10 = 10 + 7 (rounding down here, since it's 7.5) + 2 + 10 = DC 29 to resist forced alignment change from LG to CE
Now... which one of these is correct, the fighter-based DC calculations, or the wizard-based DC calculations? This would be a great help to me in figuring out for certain just how this is supposed to be calculated.
Note: Edited to fix the calculations. Still would be DC 29, though (since I forgot that 15 gets a +2 modifier for stats and erroreously put 1 instead).
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