@ hark
There is a saying amongst shroom growers, a cube is a cube is a cube. Meaning that they all have pretty much the same effect and they all have pretty much similar growing conditions.
However, that said, there are 3 that rise to the top for potency. APE, PE and Wikidzon. PE is Penis Envy, APE is just Albino Penis Envy and they also carry an Uncut. They have a good reputation for getting above the norm for potency, they are slower growing and average for contam resistance. However, they are practically impossible to get prints from, so you'd have to clone or LC to get more after your first grow. Oak Ridge first generation has a higher contam resistance. Wikidzon is an isolation of an Amazon that also has a reputation for potency. I have always been particularly fond of the Thais myself. Many first timers will go with a Cambo, B+, Equador and some others. But like I said, they're all pretty similar.
If you want a stronger, more mind affecting, you'd have to move to a different family. Cubes are a dung lover but Pans, Cyans and Azures are woodies. They're all a bit stronger but have different growing conditions, such as cooler fruiting temperatures, into the mid 50s Fahrenheit. I've never grown those, so I can't offer advice on how to grow, but there are lots of TEKs and sites that offer help and tips.
@batto97
That's a very good result for a sub in a tray like that for rice flour. I'd usually go for a cake with rice or get a sub that's a grain and put it with coir for a tray, but that's a great flush, so don't change a thing. It will make a beautiful canopy.