Dutching is fun but can be high risk whatever staking plan you might have in place. Although the BA Pro Dutch tool is quality.
I prefer to make a simple trade or two on the first and second favs (sometimes more if the opportunity is there). Swing trade, simple scalp, whatever is achievable pre race, but don't cash out. Take the race in play, sit back and watch - you can't lose. You can cash out at any point if your selections are not doing too well, however if one does win, your profit will be more than the worth of the original trade.
You can even set a predetermined cash out figure further down the ladder and keep before the off to improve profit on original trade and your selection would cash out if ran well wether it won or not.
I find this a lot more relaxing than dutching, however similar to watch, as after a couple of easy trades you have essentially covered the whole field and you have full control over your trades in play.