Mushrooms on BRF cakes... how much to innoculate?

Following the stickied videos here and am starting 12 BRF cakes in small mason jars. The video doesn't say how much he's injecting at each site, but it doesn't look like much. How much should I be injecting each time?

Why do people persist with pf tech?

Plenty of info I believe it is 1cc each but that was a long time ago pftek is a joke.

Just look at YouTube plenty of pftek grows and while there search monotubs.

If you go over 4cc in 1 jar you risk soaking the substrate too much welcoming mold and restricting mycelium growth. Like Blunt said, 1cc each jar is the perfect amount, .5cc in 2 spots or if you are really steady .25cc in 4 spots. Try to remember to shake that syringe good inbetween each jar.

PF Tek is simple and a great place to start, Just look at rye seed in the near future, you will be glad you did.