Well, I appreciate you asking me oldmac, that makes me feel good. I don't feel that I have enough experience with MJ at this point to give you much of an answer though.
My WW is from Flying Dutchman, started from fem'ed seed last fall. I bloomed some from seed my first run with it. Next run, I cloned off the best female that I kept and ran just that strain during the winter. Being a laizze faire type of gardener, I don't write much down, but I do not recall WW taking more time than any of the other 4 strains. And, all clones of WW rooted, no duds. As an aside: because I had nowhere to put all of the clones I took (all bloom areas were overstuffed ), I ended up composting all but the 4 WW. :rolleyes:
I cloned that batch using peat pots (uh oh, I hear rumbles from the gallery) with bottom heat and a humidity dome. I think all the strains, not just the WW, rooted within 7 to 10 days.
As you see, I've run her twice. Once from seed and once from clone. Once in 3 gals. of soil, once in 1.5 gal hempy. Second time results much better but only because it dried perfectly.