The huge advantage to the home gardener in growing beans...beans of all kinds pintos, bingos, limas, black, etc.etc. ... is that they can be harvested when the beans are at the height of their taste. If you wait until they are dried and hardened you completely loose that huge advantage and they are no better than commercially grown ones.
For beans like you have never tasted before, harvest them mature but before they dry out on the vines and mix in some green ones in the harvest. Of course, these beans will require preservation, unlike dried beans. We like to freeze ours and preserve that magnificent taste until they are prepared.
If you are missing out on that taste, you really are short changing yourself. They are worth every ounce of effort, every expenditure of energy IF you harvest them at the right time and experience one of the great tastes available to the home gardener. The flavor of home grown beans is truly amazing.
p.s. see the thread
https://www.gardening-forums.com/threads/bingo-beans.16714/