xenadrine, ephedrine or not

[leatherface]

Ok, about xenadrine here. I know they just came out with a new ephedrine free xenadrine, and my question is, which is more powerful? I'm not sure if the old ephedrine is more powerful, but less safe or what. Also, I used to take xenadrine, and 1 problem i had was constant cottonmouth, my mouth was always dry. So with the ephedrine free product, will this change? . I'm planning on buying some xenadrine here in the future, and wan't the more powerful one, but I'm not sure which it is....thanks alot guys