for my opinion the pip for safe SL depent of your money and the averge i can give you exemple if your personal balance is 1000$ and you enter a 10,000$ deal (10:1 leverage), the maximal SL point will be 20 Pips which equal 20$ (2% of 1000$) then play it safe do not risk over 2% of your balance.Of course that's my opinion :)