I think ratio risk and reward (usually I used TP and SL) is not too far away like in the title of this thread. If we made as ratio so 200 pips SL and 10 pips TP means TP : SL = 1: 20, it's too far away because normally the ratio are 1:1, 1:2, 2:1, 1:3 and 3:1. If the profit target is too few and Stop loss is too far so as overall you will lose if TP is hitted so many times (lets say 15 times) and SL is hitted once. It's not effective place to set.