1) Low Liquidity
3) Very High spread widening ( can be 15 to 20 pips) from broker
4) Very Large hourly (example: 88 pip large clearing ) happens for broker to take both buyer and seller positions out.
Note: 1st hour of session is during Sydney session, then afterwards Tokyo session starts. Increasing liquidity and starts end of Tokyo.
Part of your plan should be:
Pairs to trade
When to trade
What setups to trade
Trading edge & Strategy
Do not be greedy especially during the financial craziness going on in most countries around the world, just get a piece of PIP PIE in a trade if you are either a scalper or day trading. Use risk management and commonsense- this is no place to gamble with your money- use probabilities of success of setups.