When I first started investigating the theory of operation of the SSTRAN transmitter with the base loaded antenna, the explanations I received from several people did not seem credible. For the benefit of anyone else that might be cudgeling their brains over this issue, I recommend the following thread: www.part15.us/node/883
These gentlemen have done an excellent job of determining how this works, and I highly recommend reading their analysis if you are at all curious.
I would like to modify the base loaded antenna so that it presents a DC ground to help discharge static electricity. I live in a part of the country where lightning storms are very common in the summertime and I think having a direct connection to ground through the coil (e.g. by grounding the lower side and tapping up on it) would be helpful.