Hi all, I'm using Logic 9 and when I put the nodes where I want the value to change, it changes before the nodes...?
If I'm understanding this right, you may have to apply extra nodes, and when trying to create a straight vertical line between two points, Logic can be a bit of a bitch. Get to know the option, cmd and shift keys while adjusting the nodes as they all apply different means of "flexing" the line segments. I would be more specific, but I don't have Logic open at the moment. Take a look at this article
Also, under the "snap" tab, make sure "snap automation" is selected, it will make your life much easier. Finally, if it's only pitch you're automating and if it's for a MIDI instrument, make your adjustments within the MIDI piano roll's editor located at the bottom of the piano roll interface. There should be a triangle you can click on where you can select what type of automation you want (i.e. pitch, mod, etc.)
Last but not least, make sure your last node ends at the same position as the starting node. It will make life much easier.
Hope this helps and didn't completely confuse you. Feel free to ask more questions.