I didn't say anything about loss Steve. In either case the losses are laughable so it's moot. Having made many a trap dipole in my youth I can tell you the following facts. 1. Traps are lossy, they suffer from I/R losses like any other inductors (capacitors are practically lossless). 2. SWR bandwidth for trap antennas is very narrow because of the loading effect of the traps. A flatop/tuner arrangement doesn't have this problem. 3. Trap antennas must be tuned (pruned) to resonate on each band and that can be very laborious and frustrating. 4. Coax is heavier than ladder line and requires more support. 5. Coax is subject to moisture intrusion and great care must be taken to seal the end where it connects to the antenna. I'm not anti coax Steve and have used it for 40+ years in lots of applications. I assume that the people asking these questions are new and don't have an engineering degree therefor, I try to keep it simple for them. A flat top fed by parallel feeders and a decent tuner is very easy to implement and will work well with little or no hassels. There are hundreds of antennas that might work better but are more difficult to implement. Many require measuring equipment and advanced knowlege of antenna theory. I like to give them something that is easy to build, will work, and is very forgiving of hight and terrain.