I don't do the decanting and topping up with water that he does. I take a bit of wort with the yeast as I think yeast is better in beer than water. I may add some water to fill up if necessary. He's an Englishman that can't pronounce wort after all. Ha. I use jam jars and pesto jars. If the yeast is less than 3 weeks old I will pitch straight from the jar. A bit older and I revitalise it in fresh wort, probably taking some of the yeast from the jar with a sterile spoon, and saving the rest. Older still, I make a proper starter 2/3 days before I brew.
Yesterday I pitched two yeasts into a beer in two buckets. Both yeasts were in jars. One is a liquid yeast (WLP007) I bought a month ago that was out of date. I made a starter with it 3 weeks ago and stored the starter. Yesterday I cooled some wort in a jar at the end of the boil and added half the starter yeast. It had a good krausen 2 hours later and I pitched when my main wort was at pitching temperature. The other yeast was WLP066 and was top cropped for me by a mate about 6 weeks ago. I did the same thing as with the 007, added it to some wort after the boil. It was a bit slower to get froth on top but I pitched it about 2 hours after the 007. I co-pitched the 066 with some dry yeast as I want higher attenuation than the Fog will provide, and a less fruity outcome too. When I checked this morning, 12/10 hours after pitching, both batches had a healthy krausen.