I've had a few of the same strain growing and noticed smell and production differences. Just seems to be a genetic thing with some. Oddly enough the ones I remember were all "purple" type strains from ganjafarmer (purple devil,purple punch,purple skunk) ..
Not sure if that really helps u lol, but it's just one of them things each one's different sometimes pretty drastically different..
Best of luck , hope ur girls fill out nicely for you.