I just wanted to know what date should I put on as "end date for my full-time student status"
Yes, I know. I've tried to answer your question, as well as provide extra info since other people also read this - so what was the end date of the last semester during which you were registered as a full-time student?
I am pretty sure we are supposed to enter all the experience gained over last 3 years, as suggested in the guide, no matter if you are considering it as eligibility experience or not
I understand it the same way. But as Maniac says, other people limit that info to the "claimed" experience and succeed as well. And if it is not SKILLED experience, it is specifically excluded.