Hi,
Was thinking to try out straddle before London open. What pairs are much better than many others to do this, and would -50 pips from current price be great, or would be better see range of 4 hours and put buy/sell just a tiny bit from the current ranges. Any thoughts? Thanks.

Sometimes it'll go up 50 pips and reach my buy, then drop 100 pips and reach my market. So that is a bad trade. Any thoughts, or ways.