"take a cutting early enough, root it, and then you can reverse it to make pollen (thus without reversing the donor leaving it smokable), or likewise pollinate it (thus not pollinating the donor, leaving it sensimilla)."
Thanks. When I finally make some seeds (on purpose!), likely next summer. I may just give this a go, it'd mean I can get male pollen from fav strains that I can only find female. Having only one tent I'll be able to keep these little males isolated on a windowsill (under any light cycle - yay autos) until they produce pollen.
Sound like a good idean man, might do that cheers