Nirvana auto northern lights and jock horror

hello im looking for some information on two strains from nirvana seeds, jock horror and northern lights. Ive heard some talk that these auto's dont actually auto flower. does anybody know anything about this? im interested in these strains because they are autos that produce a decent yield.
any help would mean a great deal to me as this is going to be my first grow

i've grown quiet a few nirvana northern lights autos. they all began flowering at about three weeks after germination. i really like growing them: they're tough as hell, provide a great yield and awesome smoke. GL

im currently running nirvana northern light autos and yeah right around 3 weeks they start to flower, im almost at 6 and 5 weeks

I tried the jock auto last year and short rider and had good results......for some unknown reason I bought a few bubbleicious auto from nirvana for this year and have heard negative info on the strain, so who knows whats going to happen?