I am new to forex. However, about 2 weeks ago began testing long term charts and utilizing 5%-7% risk free of sl or tp, this of course in demo account. And less then 2 months I am up 60 percent (this is principally due to no tp and quite good win ration).

I think its viable in long term if sl and tp is in place and win rate is kept high.

I will try it for couple months.