I think the best way to find recessive traits would be to cross it with another of the same strain.
My understanding is that it's during the F-2 and later generations that plants segregation occurs
with polyhybrids.
Beside I don't this plant strain to become skunky at all.
Multi poly hybrid lines will always act like F2s showing many phenotypes, even in the F1 generation...
& technically...
True F1s are only produced by parent plants that have been stabilized for specific characteristics.
Landraces are not stable.