they have lowryder crosses to up the potency. like blueberry x lowryder and whitewidow x lowryder. something like that might work. look for a short squat indica maybe and just veg for 12 days or something. plenty out there to choose from just start browsing the seedbanks. also those guys were just being honest. you kinda shot yourself in the foot with this design. you said it has 1 sf. of space and you want 2 plants in there? sorry but you might want to make a bigger cab.