Forum:Syncro summoning help with mejestic star dragon

i searched in the rulings and through the other forums for a question similar, but came up empty, so i'm asking that for majestic red dragon or majestic star dragon, when it requires its syncro monsters, the majestic dragon tuner monster, and one level 1 non tuner monster. if i increase the level of either the syncro monster or majestic dragon. can i just use those two monsters to syncro summon or is the usage of the level 1 non tuner monster required