you can "breed" any plants you want but the outcome is not always going to better than what you started with.Just because 2 strains are bad ass by themselves does not mean that crossing them will make them even better!!Oh fyi, you do not need to keep the male to polinate, you only need to keep it long enough to create mature pollen sacks, then you can pick a few off and pollinate with the same male more than once.save the pollen sacks to do it more than once...but to do it right, your gona need alot of space because the polinated plants gona make hundreds of seeds and out of those hundreds of seeds, theres probably only gona be a handful that you want to continue to breed with.....lol.good luck.It takes years to make a stable strain, unless you get lucky, which does happen.