What should I learn before 2GLL?

[Discomantis]

So I was wondering if there was anything I should learn before learning 2GLL. I know about 1/5 of COLL and about 5 ZBLL's. I've found the recognition to be hard so if anyone knows of anythings I could learn to make it easier that would be great.

 

[OreKehStrah]

So I was wondering if there was anything I should learn before learning 2GLL. I know about 1/5 of COLL and about 5 ZBLL's. I've found the recognition to be hard so if anyone knows of anythings I could learn to make it easier that would be great.

OreKehStrah's ZBLL Recognition Guide.md