We don't need to disprove his excellent system. Halo came on here making his claims, so it is up to him to prove it to us. Otherwise, it will be taken for what it is; an unvalidated boast by someone seeking attention.
Now if Halo is willing to post even a minimal amount of information, such as number of trades taken in April, % winners and losers, average winners and losers, and some info on his risk management and stake size, then maybe we might be more receptive.
But at the moment Halo is claiming he turned £5k into £90k in 6 months. If you believe that, then you should search Google for some trading systems, coz there are loads promising you the same kind of return. And then you can come here in 6 months and tell us how you got on.