Soka Gakkai and Nichiren Shoshu have a reduced effect of Enlightenment.

"If you embrace the Lotus Sutra, you will become a Buddha in your present form." -- Nichiren

Nichiren states, 

"There will be those who are like milkmaids who sell milk and, greedy for greater profit, dilute it with two parts of water.... [A person who wants to buy the milk will say], ‘The milk is greatly diluted with water.’... At that time this sutra will be widely propagated throughout Jambudvīpa. In that age there will be evil monks who will steal this sutra and divide it into many parts, losing the color, scent, and flavor of the correct teaching that it contains. These evil men will read and recite this sutra, but they will ignore and put aside the profound and vital principles that the Thus Come One has expounded in it... They will tear off the first part of the sutra and stick it on at the end, tear off the end and put it at the beginning, put the end and the beginning in the middle and the middle at the beginning or the end. You must understand that these evil monks are the companions of the devil.”

In embracing the Guru mentor or High Priest (Shingon), one dilutes his or her faith in the Lotus Sutra and reduces the effect.