I had a auto ultimate take 16wks it was very slow to flower but it was 1 of my largest plants indoors period so it's not always ideal to flip light schedule but obviously if she's photo then you will need to but plenty of long flowering autos I've had a few others aswell so if it were me I wouldn't be to concerned yet. @Noideakush does it have pistols showing or is it still in full veg?
^_^ Yeah .. AU is know for taking a Lonnnng time and some SeedStockers strains too.
Depends if OP is working to time or space budget ... when do you pull the trigger!? Before it's too late?
I don't know the Whiddow V2 as a strain (not heard anything about it) & unsure of the breeder ... If it were one of the big players, i'd be more convinced it's gonna do what it's supposed to.
It's not the end of the world if it's photoperiod - just flip the lights 12/12 - it looks like the only one in the tent. But give it too long to find out .. and you've got another 70 days of flowering and a BIG space problem
I'm on the fence (not arguing ^_^ ) .. but ... I'll bet you ONE Dollar it turns out Photo!