thanks for the inspirational thread here. I myself would like to try and make some crosses.
Happy you are enjoying
Seed making is easy, you should try it if you'r interested. Keep a male, let it flower until flowers almost ready, cut the branches and put in a cup of water until it drops pollen and then you can selectively pollinate a female by putting some pollen in a plastic bag and tying this bag on your designated female branch. Shake well, remove after 1 day and spray the whole grow with water to disable any rogue pollen.
You want to pollinate your fems around day 20.