thank you everyone!
williams: yes. I've most of the time spent my hours on a 20". will never decide wich of those two sizes I like the best.
but I wanted to give 24" a try, again. I don't regret it. but I do miss 20" a little. it depends on what you in person like the most.
what I'm saying is that you should give it a try. mix and match the stem/bar setup! it makes a huge difference