70.3 tri event in jan 2022

I have done multiple 70.3 events and one 140.3 event, I have been doing tri training since 2011. I plan on purchasing an individual multi sport plan (16 weeks )but my 70.3 event is not until 3/2022… would the plan be tailored to base training and then 16 weeks prior to the event would the individualized plan then be tailored towards the event? is it best to purchase individualized plans or to use the in app 70.3 plans for base training and then purchase the individualized 16 weeks plan close to the event?
thanks in advance