Cattleya Flower Sheath

[allaKAZAAM]

I have looked almost everywhere on the net that I can think of, and only my one book actually gives advice on the Cattleya Flower Sheaths.
SO I will ask here (unless someone can point me in the right direction!).
I recently purchased a C. jenmanii with 2 out of 3 new growths with flower sheaths (the one is about ready to flower).
My question is...do I remove the flower sheath or just let the flower push through the sheath?
I have read the threads (on this forum) about C. flower sheath rot /or drop. I am concerned about this since this is an orchid I have been looking for awhile now...and finally found it!
..though I wasn't expecting it to be such a MONSTER sized orchid...causing me some issues on WHERE to put it!
Anyway, I really DON'T want to loose the flowers I have been looking SSSSSSSssssoooooooooooooooooo forward to seeing.
Any and all suggestions are appreciated (BTW, the sheaths are healthy and green, maybe a little of black tarry stuff...which I assume is the "sugar" they produce). Other than that the orchid is very healthy. I will take some PICS ( ) ASAP, and post. For you all to see the state of the sheaths.
Thanks!
Mark