I mainly use CCAlexa, rather than using the SP-Mod on windows. Reason being is Alexa is a tad more optimized for mining on the Skein Algo (Depends on the Pool, be it Yiimp, Zpool, or even MPH) All pools have different hashing and payouts, some pay better(Less miners and difficulty = possibly higher payout depending on fees)

For MPH I have to use the stock CCSP-Mod, can't use Alexa without some tweaking.