Vallejo color codes for IJN aircraft needed

I would go with Vallejo 049 Medium Sea Grey. It's closer to FS 36307.

The vallejos equivalencies is really good but it's a little help for japanese aircraft colors. 

I have been looking trough a ton of comparisson charts, I came to two different colors. One was tamiya xf-66 and the other xf-12. Which would be closer to the IJN light grey used on the bottom of their aircraft? 

Michael

Here is a link to a chart a memebr made a while back.

 http://www.geocities.com/tho9900@verizon.net/Vallejo_Paint_Inventory.htm