I have not had the opportunity to add Sailor ink to my collection. Physically no room to add more colours and not ready for the conversation: you are bringing more ink home!
In 2010 Sailor updated their offerings with a new ink and bottles.
The new colours include: Peche, Ultra Marine, Epinard, Sky High, Grenade and Apricot.
I can on comment on the Blue which I bought while on holidays in Paris in 2011. Some of the reviews I read about the Sailor inks are that some colours are alkaline. Inks with strong alkaline levels can break down organic resins, which include some celluloids that are referred to as vegetable resin. OMAS made some pens with this material.
I think price and availability in the Canadian market may make using this ink lower down on my list.
Blue - on my 2011 trip to Paris I bought a bottle of Sailor Blue as an ink to try, as the ink is next to impossible to buy in Canada. I was hoping for a rich, saturated, stunning blue. Not so. The colour tone was mid-of-the-road. The depth of colour was too light. Ink flow was good, although it leaned to be a "dry" ink. The bottle is too shallow for real use. The first couple of fills are fine, but put a big nib into the shallow bottle and you start sucking up air very soon. The bottle of ink never made it back to Canada.