Mason-Dixon is one of the best pollsters out there. Possibly an outlier, but I doubt it.
Hispanics are generally Cuban, and Republican. As noted, Hispanics seemed impressed with Romney's debate performance.
Voter Registration numbers of Hispanics in Florida
2008 (General Election Book Close)
Dem 37.9%
Rep 32.9%%
Other 29.3%
2012 (Primary election Book Close)
Dem 38.2%
Rep 29.9%
Other 31.2%
Do you have a link?
http://election.dos.state.fl.us/voter-registration/statistics/elections.shtml
You will have to dig through the different reports yourself but it is all there.
There number were as of July 16, 2012. Also, the earlier numbers, 2004, don't treat Hispanic as a "race." You have people that
are Hispanic, that were registered a number of years ago and identified as white (it is probably 6-10% of the electorate). There is also the relatively high number of independents that are Hispanics and tend to vote Republican.