Phil, FWIW...yes, looking ahead is really important and can help with smoothness. I actually think two things are more important: 1) "thinking" ahead, and 2) starting your steering inputs earlier. By using visualization to make sure you really know where the course is, it can help compensate for not looking ahead as much. Sometimes I find myself looking only 20 feet in front of the car during a section (when I should be looking 75 feet), but I'm still "thinking" 75 feet ahead in my mind's eye. Subsequently, I often end up doing the same thing. So, the thinking ahead is my automatic back-up for times when I'm not looking ahead enough...anyway, the two compliment each other for me. The trick is to invest some time running the course over in your mind so you know it well.
The thinking ahead keeps me from being surprised on course, which means I start my steering inputs earlier...which = smoothness. I'm definitely not the smoothest driver around, but I'm tons better than I used to be, so it really helps. Plus, it will help you be very agressive from run #1, thus giving you 3-4 shots of making a winning run instead of just on your last run. Being smooth means any "moments" you have on course will likely be smaller and easier to catch than if you're are jerky. Once again, this can allow you to be more aggressive in the right places.
The 2nd part is forcing yourself to start dialing in your steering arc earlier (i.e., turn early and turn less). When I walk the course I try to look for the earliest point in a corner where I can initiate my steering input. The earlier your input starts, the slower you need to move the steering wheel, thus the car doesn't get upset, and ultimately responds better. Starting your inputs early is even more input with a manual steering car.
Sometimes looking at the same thing a different way can trigger something in our brains to achieve our goal, so please take my perspective with a grain of salt. I think that the visualization/thinking ahead, earlier steering inputs, braking earlier and less are responsible for helping people make a big leap in their skill level more than anything else. There is definitely no one (1) right way to do things in a car, so there are probably better ways to approach your goals than I suggested, but that's my 2 cents worth
Good luck,
Eric
Eric