Nice learnings! I also found out when I'm almost done for the day, I end with trying a couple of new routes, then go home and let those (subconciously) sink in, then the next time when I go climbing again, I top them (as if I had trained these routes in my dreams :-D)
Yes that's a good one, I have experienced this also, just shows us how much is happening within us that we are not really aware of.
Btw, where do you go climbing? i see you are also from Holland