Oh thats an easy one. It's Tank, right?
I have to admit, I was a little confused by the two separate parts. At first I thought it was two alternate stories, like you couldn't decide which you liked better so you did two versions. Now I feel pretty dumb because it was all one story! But I liked it anyway!
I don't think a wham warning was entirely necessary. It was a fairly short story that was completely resolved. But thats just my opinion. I guess it doesn't hurt anyone to say you messed with the toys but you'll put them back later.
All in all, I really liked this story. It was very different, and that's always welcome. As with all time travel stories, the technical talk did confuse me a little. Kudos to you for being able to write it coherently!
~Kristen