Well sadly I had to move at different points and wasn’t able to keep the genetics for longer then 5 years there “smarty pants”. What do you think is so magic about a specific length of time that would make the genetics degrade? Genetic degradation happens from poor plant care, as well as pests and pathogens. If you clone a sick plant it will keep being sick, and it will usually get weaker because it’s a unhealthy little cutting. It has nothing to do with a time frame. Your “OG” buddy sounds like another grower that believes all the old hippie science. But if he had potency lose or plant quality change, it’s because he didn’t keep them healthy not because it passed some magic number or years or times cloned.