I think tater's improved campaign layers are a godsend. I really enjoy the reduced and smaller contacts. It makes sinking the big ones so much more rewarding.
If you see an unescorted huge european liner every day, it becomes no big deal. If you see one maybe once or twice a career and everytime, it's escorted by 3 DD's, your heart starts pounding a little faster when you move in for the kill.
Maybe you should try that mod, jbt. It can be found here:
http://www.subsim.com/radioroom/showthread.php?t=116283