I raised my handlebars 4 cm. I didn't want to be upright just a good neutral postion. 4 cm was a lot which is why it was so hard to adjust. Once my body adjusted the change was comfortable and I was happy. I remember thinking that I made a mistake in making the changes.

MimiTabby, if there is a significant difference in body position and fit between your old bike and your new bike you will notice it. You have to train your body to the new position.

That's why fitters recommend making changes in small increments.