According me i think 100 pips stop loss is good for the 30 pips take profit and i use this strategy and getting good profit also, i think it is the best strategy for the trader because if we take 200 pips stop loss then it can give high loss. I think failure is the piller of success .When you loss 200 pips you should think about your mistake .Next time you will not committed such mistake ,this very important for a trader.........