"Will sending it in hurt me any?"
It will generally not hurt and, in fact, will ensure you receive a $25,000 exemption in the future (i.e., you will never have to file again unless and until the tangible personal property used in your business exceeds $25,000).
However, a few counties have different procedures for filing the DR-405, including mandatory online filing and customized reporting forms.You should contact your county property appraiser for further information (see link below).
http://floridarevenue.com/property/Pages/LocalOfficials.aspx