all EFT that track Futures and are 2x or 3x are to be used for playing only with money that can be lost.
you want the real deal then go strait to the futures contract but be prepared to spend some $$ if you do that and you better not have a weak stomach.
I love trading the future contracts, oil, gold, silver, Wheat, OJ, pork, corn and the list goes on and on, to me making $$ is eaiser in Futures than in equites, as futures in my thoughs are more prediciable. NG for example, summertime its cheap winter time its expensive, so but in summer sell in winter PERIOD...
what more is there think of, if supply gets to high then they will cut back if supply gets to low then they will increase production, you just gotta estimate when they are doing what.