Not all plants get alternating nodes before they show sex. I have a Hashberry right now that did not get alternating nodes until about a week to 10 days after it showed sex. So, while this may be the general rule, it is not always the case (still think I see male parts on that plant).
Rather than plant more hermie seeds, why not invest in some decent genetics? Check out Hemp Depot in Canada. They have some great breeders and some great prices. Or go to the single seed center and buy a few seeds of something decent. Hermy plants will still produce bud, but the potency will be lacking and the yield can be horribly affected. With a crop that is well seeded, you can expect that 75% of the bud weight is going to be in (useless) seeds. The potency also lacks because the energy of the plant goes towards producing seeds and not THC and other cannabinoids. Spending $5-10 bucks for quality genetics can give you ounces and ounces more product.
