If so, what is the frequency of past lives versus past, present, and future life extensions among the mix?

The current life future extensions are equal to past life future extensions and to the combination of the rest as a third source. So the current life is the most impactful and its future extension next, and then the sum total of all past life future extensions because they are a furtherance of the past lifetimes and often compound the negative and so are more toxic, in a sense, and more dangerous as an influence on the current lifetime, the sheer number of the past lifetimes and their extensions being the reason they are so influential as an aggregate. So the future lives and their future extensions come in third in the overall scope of influence or recognition as an ongoing current issue when channeling the deep subconscious.