Those are reasonable points..but theyr ARE scientific experiments were some kinda of vegetable's seeds were treated with Ethylene,and the resuls were feminized seeds.I eman,just think about it,almost every "seed feminizer"product out there contains Ethlene as an active ingredient..ethylene is the gas given off by bananas as they naturally decompose..thus permeating the seeds membranes and feminizing them.Some people have tried ot for YEARS,and they alwas get a 100% female ratio.
The way I see it,it's worth a try,seeing as it'll only wastes a few weeks of your time.