That article is decent for a beginner.
Time on water will help you fine-tune where to put your weight in different wind/wave conditions, etc. The amount and variation of skipper/crew weight may also affect this.
Note that, especially if your battens are tight, and/or in very light wind, your battens may not pop (the sail won't tack) until you release the main.
Releasing the jib late will help reduce the chances of blowing a tack, but is not as fast (e.g. when racing) as releasing when you're head-to-wind, and getting it to draw on the new tack.
Hope this helps.