I don't have a CCrane 2E. But I can speak to the EP, because I have one. It is based on the Sanyo LA1260, which has always been a bit problematic. The Radio Shack 12-603's used them, and also had a tendency to overload in the presence of strong local stations. The AGC is really messed up in a 12-603, and it is another radio that probably needs my hacking touch. LA1260 is an interesting chip, because it has a degree of RF amplification on the AM antenna input. This gives it the potential to be a great DX unit, but I suspect the EP adds too much RF gain in its separate, external RF stage. I intend to re-bias that stage to have less gain, and I bet it doesn't take much to make it stable in the presence of strong locals. The main reason to have a tuned RF stage is to overcome noise, and to provide some image rejection. It is not necessarily to make the radio more sensitive, although it can help. But more sensitivity doesn't help if you are overloading. If you can bias a transistor stage, and don't mind surface mount boards - give it a try. The EP is unusual, because it is a double sided board. So be careful with through hole components.