of course I have KSE1500 why would I give my opinion otherwise. I would recommend to try to find the best universal tips. For me it is the comply comfort tips (the long ones). But it is totally up to you of course.
My experience with the Sensephonics custom sleeves is completely opposite of Michael's. To me they opened up the sound across the spectrum and I find them very comfortable. A great improvement from any universal tips. I like Maurice aka Moedawg would recommend the full sleeve and the smoke colored.
I think it heavily depends on your ears. Mine are very comfortable as well. Just hard to get in. The impact on sound will, IMO be a gamble given the conflicting reports. On mine the sound is nice, just very different from the original.
I could not agree more.
I'm with you on this. Price isn't a concern with me when dealing with comfort and ultimate lovely sound - up to a point, of course (I won't be getting the MSB system anytime soon). And, with the SE846 you can use Knowles Dampers to change the sound even more to your specific liking! Review of those are in the profile as well, if anyone's interested.
Green would be okay for the left, or blue, as blue is what is typically used to distinguish the left side. I have a green left Snug tip, so definitely not saying you've got to get blue on the left. I would say it's probably best to get the sleeves as red on the right side if you are going with that color, for uniformity, but you are free to choose whichever color(s) you'd like for any side you want. 
I'm with you on this. Price isn't a concern with me when dealing with comfort and ultimate lovely sound - up to a point, of course (I won't be getting the MSB system anytime soon). And, with the SE846 you can use Knowles Dampers to change the sound even more to your specific liking! Review of those are in the profile as well, if anyone's interested.
Yellow foams I agree with you as well. Hygiene, waiting to expand, etc. were some factors why they weren't the best for my ears.
Very cool your wife is a captain. In my opinion, you should at least have red as the right because most all connectors and cables will show a bit of red as the right side, so having your SCS red as the right will help keep everything "uniform". Hopefully your wife can appreciate that.
Yeah, as explained in the previous page, I would highly advise going with the full sleeves (I explain thoroughly my reasons in the SCS review thread). I'd have to disagree with Mr. Kloss' statement about "getting colors because they discolor soon is a waste". It's up to you to get "uncolored", but in my first-hand experience with seeing the "clear" sleeves, the sleeves showed discoloration over time - also explained in the SCS review thread.
Thanks!
