Myo Fermentans only works to make their life longer.
Naturally there would be no 11 YO buski but thanks to the US Army bioW department they found a way to let them live longer and grow larger.
Mind conrol with Buski starts with embryonated eggs which show the first cystals but doesn't get really wicket until they turn +11 YO.
I am pretty sure Serialis Layer head even preceeds the Tapeworms so that is most likely the most active early in life...