Endgame questions

[kovy27]

Hey I've got some questions regarding the walkthrough and more specifically, the endgame portion.

I'm about to begin Mephestopheles quest and I was wondering :

- Shouldn't I manipulate my character tendency back to Pure White when I'm done with this quest? Wouldn't it make the King boss and NG plus easier in PWCT?

-Also, since I have all the required souls before Mephestopheles, why isn't it suggested in the walthrough to buy everything from Sage? Wouldn't that make things easier also for the bosses and NG plus? Then I could only buy the remaining stuff from Yuria in NG plus to get Sage's trophy.

Thanks.