True Super Saiyan

People wonder why are super saiyan eyes green instead of yellow/golden, why did Vegeta's hair glow green before turning golden in Dragon Ball Super Movie? The answer is simple: the legendary super saiyan is the true super saiyan transformation and the golden hair version is just a diluted form, powerful but weaker. If a saiyan can separate the legendary from the diluted (green eyes turn to golden in ss1 form), then they would have access to both forms without weakening the other. It seems those with legendary ss and ss1 forms etc. are much weaker than they are, but can still compensate with great skill. If separating the green from the golden they would be able to access both forms separately and not weaken their legendary form.