What is a high yeilder

About to start up and have been trying to find info on strains of mushies. What is a good yeilder to grow. I was curious what the masses experiance is on this subject is.

Don't worry about yeild the first time out. you will very likely not get anywhere near potential in your first dozen grows.

Yield is a function of pin set, quality of substrate, number of flushes maintainable, land race, surface area and moisture content of the substrate and/or casing.