Re: Edge III swap for another Edge model trem?
Actually they had been paying Rose from day one for the Edge and the Low Pro Edge, that's why it says so right on the trems. The original Edge came out in 86, I think, maybe before, someone else can give the correct date.
They had been paying right up until 2003 when the patent ran out, BUT, the patent for the low profile is still in effect I believe until 2007. They weren't aware of this, I'm guessing, and didn't want to have to pay Rose a fee for trems their lowest-end guitars, thus cutting into the slim profit they have on them already, so they reverted back to an original style design to avoid the fee.
They'll still have to pay on the Edge Pro and Edge Pro II, those are low profile style trems, but they don't have to pay a dime for the Edge III, since the patent on the Original Floyd has run out.