Strain
There are few certain things in the world of cannabis, genetics plays tricks that no one can sometimes overlook but this work that has been done on the F1 really convinces me. The plants are very similar and resistant as they say and it is very interesting to be in as much control as possible of the result and to know what you are buying.
You too know this by now, it will often happen to you that you find totally different plants, semi-hermaphroditism and a lot of problems due to multiple crossings. If you don't see a possible solution in F1, put on your glasses!