Welcome back. You need not feel bad about having "80's" knowledge of RC. You will quickly pick up additional info to add to your present knowledge. One big difference you will find is that there are numerous "practitioners" in RC today that are unburdened with any knowledge of RC. They just buy stuff that is already plugged together or pay someone to plug it together for them. In the 80's, RC was still a predominently builder/modeler hobby. There are still builder/modelers out there, but not to the extent you might remember. There is lots of good stuff to enjoy in RC. Have at it!