Originally posted by tiepilot35
There is a jerk there because of how the Continuous Roll banking system works with small and large segments. The Newton element is certain to have very tiny segments of track, and your handbuilt addition is probably a long piece of track. Try either disabling "Con Roll" on the vertex that connects the two, or try splitting up (keyboard shortcut [Y]) your handbuilt segment into many smaller segments and smoothing (shortcut [G]) them.
Smoothing and splitting into small segments really helped. I almost cant even notice a transition now. Thanks alot!