Cheers for answer bud. I would never have been able to with so much info.
Yes. Both those above mentioned strains was when I planted towards the end of outdoor season expecting to see some purple. Not because I wanted to fool people but because I wanted to look and learn.
To be honest though, I'll leave the next late season grows until I can replace the shade cloth on my tunnel to plastic covering.
As you mention, manipulation can perform wonders.