Yes, I do think that if you IK I-No you'll have a different path, if I do remember correctly.
And Ky's Path is much more complicated because when IK'd ABA I still got the 2nd ending. I think it has to do with Ky's choices. I'll check Ky's paths again and revise the script if there's errors.
EDIT:
Of course that'll be very helpful for people who would volunteer to type ^_^ How about Kliff's and Sol's Path 1 for a start?
P.S.
How about Ky's Path 1 too? XD (OMG my fangirl side is taking over)