nice bro
I'm about to pop a bunch of the Durban x CO-Kush (the OG moniker on the labels is wrong). another friend popped a bunch (@ 15) and said he got NO females =\ the other batches/crosses ratiod out correctly. odd, so will be interesting to see what yours and mine do.
out of the 10 widow x co-kush, I got a 50/50 male/female ratio. for testers I like to go straight from seed without any training to see what they will do first. I was able to sex them all by week 5/6 easily. I placed into flowering @ 18" average on June 28th, so they are @ week 6.5/7 now and average 47" tall. 1 grew squat (bug problem early on, stunted it a little ... it's only 36"). 1 started to form ballz at week4 and was culled. the other 3 are huge, thick stalked and beatiful. looks like 3 phenos - 2 are wider branched and very similar except for frost (one looks frostier), should be really good for SCROG setups. the other, my fave so far, is a tight branched girl and looks like the top will merge into a giga-bud, right now it's @ 15" before side branching starts.
for size ref, those are 5 gal airpots/growbags and 4' stakes
giga-bud
all 4 together (the short one on the lower right is the squat one, the other shorties are golden goat)
edit: forgot to add. the Widow Male used was from Dutch Passion (seed stock) and chosen for stout stem, smell, easy to clone and good cluster structure. flowering time for the female (same seed batch) was 10 weeks, medium feeder. the COKush (the female used in this cross) produces large buds, heavy feeder --- I'm finding the same is true for the 4 girls so far. she finished in 9.5-10wks. so I'm guessing on a 9-9.5wk finish time ..... if so, the above still have @3 weeks to go