Join Date: Jul 2002
Location: Wetzlar, Germany
do not mix up Lo-TRS and LoPro, they are way different in quality (and though in tuning stability).
The "normal" Edge and Lo Pro Edge are equal in quality. The difference is the position of the fine-tuner. Something you should decide with your personal preferences.
The TRS-trems are for the less pricier modells. Do NOT get one of those.
The double-edges do have piezos elements for "acoustic" sound. They are avaiable as Edge and LoPro (though not as a spare part yet... Ibanez is missing something there.
Well, and on this years NAMM Ibz introduced new trems, have a look at the topics.