desimy;
I am surmising you would just change the -bool true to -bool false. Honestly on my Mac there's no difference that I can see on the sides, but it does make a difference on the bottom.
From everything that I've gleaned, the dock is now rendered differently than in the past, so, it will take all those "dock modifier developers" out there some time to figure out what's going on and possibly provide a tweak.
Apple, of course, in unresponsive. I've been a little discouraged lately with them in that I'm not seeing that level of innovation that I've seen in the past, either. They seem to be going into "Microsoft" mode... defend the base apps but don't offer anything of substance. IOS7 was a flop with regard to innovation. So has Mavericks. Aesthetics ONLY, no substance. If they continued to go this way, it won't be long before other, hungry companies will eat away at their base and once that starts, we know what happened in the past!