I agree with everything you said Rannasha, but for the management of Fiat Currency, the only way to avoid being short is to use CFD Bitcoin. Ad example Forex-Metal offers CFD with a lever 3 and commissions of 0.5%. I do not know if it might be possible, but it is an idea. it is also true that transfer to btce costs 1%, and in addition there are fees for the purchase and sale, then where is their gain? I remain skeptical or at least surprised by so great profit.