I have an acrylic Kingsize but most of my answers should apply to the ebonite. My answers below in red.
1.How many turns of the cap will uncap the pen?
About 1 3/4 turns.
2.In Ebonite finish are you still able to see the second chamber of ink?-for the moment the CAISO sistem is unavailble and the pen will fly sometimes.
The ink window shows the smaller of the two chambers, which is the one you may want to empty before flying (I'm not sure which chamber you consider the second chamber but I assume you mean the smaller one). You can't see the larger chamber unless you get a demonstrator, which you could do and still get an ebonite cap.
3.For long writing sesions you need to unscrew the top cap to have a continuous ink flow?
It depends on how long your long writing sessions are. I think the smaller chamber holds about a cartridge worth of ink which is enough for a few pages of writing (this varies depending on the width and wetness of the nib). If your long writing sessions require more than this you will need to unscrew the top. I think I have to unscrew the top cap 2-3 times while the pen is inked to use all 3ml of ink.
4.If some of you have the pen in Ebonite for more than a yaer or two -how does it look?
I don't have an ebonite Conid but ebonite should hold up well if properly cared for (i.e., not leaving in direct sunlight). I do have a Sailor ebonite pen and it looks great after many years.
5.I want to buy a F nib in rhodium trim-your nib's have feedback or are buttery smooth.
I don't have Conid's rhodium coated nib but their standard gold and titanium nibs are both very smooth (the titanium has a very soft feedback). Rhodium coatings can sometimes add feedback to a nib but Conid could make sure the nib is smooth before shipping if that's what you want. They can also do other nib work if you want more customization (e.g., stub, oblique).
I hope this helps; Conid makes wonderful pens that should last a couple lifetimes.
(Edit to make things red)
Edited by Mulrich, 13 June 2019 - 16:00.