I'm 50 y.o., 5'10, 170 lbs, been skiing for 45 years. Generally employ a lot of hip angulation in short radius turns, and not afraid to use the whole ski, including tail.
If you liked the Course Tis, just get them. Really fun ski. They shouldn't be that hard to find. Generally Dynastar makes plenty of skis, and there are often left-overs in the spring or next season. If you are willing to pay for this year's, here is one place to get them. (Good shop.) They may even have some with last year's top skin for less. Worth calling and asking.
The Course Ti IS a great ski and along with the Head Magnum are among the few non rockered skis remaining. Both are excellent with the Head being slightly more damp than the Dynastar. The Head Titan is a wider (78mm) version of the Magnum. With the extra width, it is a little more versatile but not quite as grippy.
We have all three in stock and web purchases ship free.
As an eastern Pa. lover of short radius carving skis, my belief is they can not be replaced, in kind, with their wider cousins. Keep your thinking clear, do not to blend an all-mountain western ski into an eastern low turn radius carver. I know some narrow skis come with slight rocker, but, I'm not buying the claims they are easier to initiate a turn. The Course Ti was a fine carver when I demo'd it, but, it is a little more GS feel as the waist is 72 mm. I did like the Fisher RC4 and it's more the Sl type turn you describe. I also like the Elan, what did you find? One aspect of the slightly wider waist skis is they are more comfortable to ski in all day as Sl's suck out a lot of energy making all those turns.