Homestead portability Royal Harbor

I spoke with Abe Skinner the Collier appraiser last week and was updated on this latest taxing issue of portability in the Homestead exemption. This is how it was explained to me.
If you are moving up, this means buying a more expensive home, and if you you have at least 500,000 in homestead savings then you can carry all of it (up the the half million) with you on your next home. Naturally if you have less say an accumulated 375,000 in assessed value minus your taxable value then you carry only that forward.
BUT...If you are moving down you do not carry all your savings. There is a formula you use to determine how much of your savings you can port. Those people thinking they can then go from a home where they are saving 500,000 in taxable value and buy a lesser value home and get this reduction are wrong. They will not take 500,000 with them, only a portion will transfer. I think that is based on the percentage of assessed value to the actual value.
I am sure this will be explained as we near the deadline to vote. Still so far this has been misleading.
If you are in Royal Harbor and are homesteaded getting the 3% annual raise max then you move down this will most likely effect you.