Hey!
About the IPD. Do you mean changing this setting to 55 in the Elite settings file or manually setting it in the oculus utilities? In Drkaii thread he says the ED setting files is obsolete if you want to change IPD in ED so I assume this is true? Also, do you advice using 55 in ED regardless of what the oculus IPD measurement tool says? Mine says 61.9 or so. I`m at work atm and can`t check the difference, but my emerging tweaking-OCD is always reading and planning new stuff to try when I get home.
Edit: some typos and another question added.
IPD only works if you set in the Oculus configuration. And yes, ignore the suggestion the config tool gives you, mine told me I should have it set at 67 or 68.
I actually use an IPD of 53 with ED, but you have to manually change it in a file on you computer. Try 55, if you are happy with it, I'll search for the instructions to lower it further.