QUOTE (Jens of Zanicuud @ Jul 27 2012, 05:01 PM)

Generally, I found that the secondary idea is often better than the previous one and is something more mature, such as the original idea was refined and upgraded, but maybe is just my opinion
Enough said. Making and actually completing a project is a massive commitment (at least for me). From my experience, if an idea doesn't completely motivate me to the point of losing sleep, then I'll probably get bored and give up. But the good thing about doing that is you can pick out the things that do work, i.e. your pain/blood system, since you already had that programed.
On a side note, I think you should at least turn Countdown to the End into a short story. Sounds really cool.