This may be a silly question but I want to be sure I am not doing something dumb out of ignorance. 
I will be growing my trees in containers and stored inside in the winter.  There are varieties I would like but they are not rated for my zone.  I am thinking this should be OK as I understand they are early ripining but not sure.  I am looking at O'Rourke and LSU improved celeste.  Help with my fig education would be appreciated! 

Hi. Those two will do well for you. Once they are established in your containers they will give you fruit early enough. But when they are planted the first year they will give main crop later then normal. I have many lsu figs and those two are really good. O'Rorke is a favorite along with gold that drips honey evertime there ripe. Richie from louisiana

Should be fine

Rating for the zone generally implies for winter survival. If you are growing in containers in Zone 6 to be stored inside at safe temperatures during dormancy, then the question of zone rating is mute in my opinion. Choose the ones that will thrive well in growing season in your area and ripen relatively early. Do experimenting with different varieties in your area and you will eventually come across varieties that do well in your area and there wil be some that will grow well but least productive or productive but late ripening.

I am in zone 5a growing in pot and so never had to bother about zone rating and found out that many varieties touted by others such as Smith, Hunt, Sultane etc grew well but did not perform well fruit delivery wise while some others performed very well such as I-258, Kadota, 143-36, Mars-VS-Black, Vista to name a few, produced and ripened well. You have to experiment with different varieties and find out what performs well in your area/zone.

Thanks for the input.  That is what I thought OttawanZ5.  I wanted to be confident before starting and having a complete fail.  Figpig_66 thanks for the input on the cultivars I chose.  My plants should be arriving next week :).