The Truth About Different Types of Cubes:
Most cubes look alike.
All cubes grow in the same conditions.
The differences between cube races, varieties or 'Strains' are, more often than not, minute.
Some races are known for fast colonization, or large fruits... even high potency.
Your results will most likely vary.
The Truth About Cube Potency:
[...] A few cube races and varieties are reported as being more potent than others... but there is no scientific evidence to strengthen the potency argument. Everybody wants the answer to this question... but all we have is opinion. Most people agree there are differences in potency from one type of cubensis to another... but they seldom agree on which cube is the most (or least) potent.