What I try to do is base my bet amount on my idea of the risk factor and how much margin I think is gonna be in the trade. I never really take two bites. I put the $$s on when the SP is most favourable. If I miss the good price I let the trade go once the margin falls. That's my way of risk management.
This is based on the idea that if there is a fantastic trade opportunity and you only make the same $$$s that you make on ordinary trades, then you have actually lost money. In the same way that if you make a large bet on a poor trade then you have lost 'extra' money. Cos at the Eod, it's your total return that matters, not whether you have a 'win' on a single trade.
Staking and risk management are probably more important than picking trades cos your picks should be based on a straight out, objective, tested formula and not any subjective criteria. imo
