Some strains have droopy leaves all the time, some get droopy after watering or at the end of the day and some have top leaves that reach up like they are praying to the light all the time.
You never know what a particular strain will do until you've grown it out a few times. Plants grown from seed can be very different from a plant of the same strain from the same seed pack depending on how well the breeder stabilized the strain before selling seeds from it.
When you grow clones from the same mother they should all be exactly the same if grown in the same environment. Change the light, feed, grow media etc and the same clone may express different traits than what you're used to as well.
When you cross two different strains, (F1s), you will get about a quarter that look more like the male and the same on the female side. About half of them will look very similar to each other as they are more a blend of both parents but will have subtle differences that the trained eye and nose of a good breeder will select from to breed over and over again to get the final stable mix that he wants to be the stable strain he will finally release for sale. So many seeds are being sold that are not stable and for way more money than they are worth. Lots more money can be made from seeds than from selling the pot from the plant without seeds.