I have yet to find a plabt I couldn't reverse, have had a few reverse but with sterile pollen
making your own CS is the best way, cheapest, and sure fire way to get it right! Also it needs to be mentioned while spraying with CS twice a day cut back on the watering of plant, keep it moist and let it get almost dry before watering again as spraying will be enough.... I personally got tired of mucking around with CS and since have started using STS, SO MUCH easier, spray once and thab again in like 10days and that's it! Though he cautioned STS is toxic and dangerous use safety while using, don't get on your skin, wear goggles, gloves and a face mask and be warned what ever that spray hits it's going to dye it brown, so best done outside.... Also when ordering the two needed chemicals Silver Nitrate and Sodium Thiosulafate not to ever order both chemicals from the same seller... Best place I've sourced the needed stuff was on eBay...$30 total and you'll have enough to make STS for YEARS to come!
So there is options out there, way the pros and cons of each and whatever you decide don't buy CS it's just plain ridiculous when it can be made so damn easily it should be a crime to sell the stuff