Femmed seeds have no females if done right. Ever. (per genetic limitations...no male genes)
I've never presoaked, but I never use jiffy pellets or rockwool, either.
My FF schedule is above, But I have been using Cha Ching with mixed results for the past 6 months or so. Not something I'll purchase again, but have nothing against continued study till gone.

Some strains take longer. Patience.