I used braid for the first time, and although I absolutely love it, I noticed a considerable reduction in my casting distance, which appears to be happending because the line digs into itself on the reel (like velcro lightly sticking to the line still on the reel). I had read lots of testimonials about line conditioner, but I was very skeptical. I figured if I was going to spend $8, I should make sure it works before making the same mistake twice.
So I took my reel, braid, and a 1/2 ounce spinnerbait out at a bank on a lake where I regularly fish, and tried to hit my target. I gave it every ounce of stregnth I could, but each time I fell about two feet short of my target on the other side of the cove. I tried this again with the same reel, line and lure on three different rods of varying sizes and stiffness. I tried casting high, low, and every angle in betwee, and each time with the same result: I always hit about 2 feet short of my target.
Then I sprayed about 3 to 4 pumps on Real Magic on the braid and let it sit for 12 hours as I had read online. I went back to the same spot the next morning, and the exact same this happened; fell about 2 feet short of my target. So I went back home, tied the line to a post, pulled all of the line out, and sprayed about 15 pumps on the spool as I reeled the line back in. I went back to the same spot, and same result.
This stuff may work well for mono, and possibly flouro, but it does absolutely nothing for braid in terms of improved casting distance.
I'm going to try the same thing with some 17# flouro I just put on a line and see if there is any difference. I'll post on update with the results.