yeah i believe there is better and stopped running it outside. on another note its great stock for making crosses. i combined it with a local outdoor strain i had and it was worth it.
some ran a blue dragon cross last year in your neck of the woods. 6in cuts were planted in 100 gallon smartpots third week of june and finished sept 25th. 3 p`s per and only 4 feet tall. compost tea and botanicare nutes only...^ interesting. im at 39n , not surrounded by water, depending on strain though of course i have no problem some years harvesting mid october. depends on strain and weather. can usually run anything. some mold is acceptable loss outdoors, but usually comes down to when it starts to rain.
I grew some of Mosca's C99 F1's outdoors last year and they were great. One plant was the yielding champ of the year. No signs of PM at all. No signs of any distress at all.
A couple were ready 3rd wk of Sept, one didn't finish till mid October. (~37N)
I don't see any problems with C99 outdoors, unless of course you try to pick it too early, which it seems new C99 growers all want it to finish in 5 wks.