It is a mistake, IMHO, to change from an "at-large" vote to one of only voting for a Commissioner from a particular district.
1) You stand the chance of pitting one district against another. It can stalemate or slow the function of the Commission.
2) Your contact with Commissioners from other districts is the same as when you call Congressmen from other areas. Its basically ignored because you are not a vote.
3) There is no sensible reason to change a system that works quite well for a majority of the population but negates the effect of "power brokering" by one group or another. I like the idea of being able to contact Commissioners from other districts and knowing at least I have a chance of being heard because my vote for them counts.
4) Going to a vote for only one Commissionser when you can now vote for five is a bad idea.
All good points, but a politician who does not need a certain area's votes to get elected typically does not care all that much about that group.
I'm okay not voting for the senator from Tennessee, because I know they care very little for my opinion and interests with so many other votes are out there.
If all commissioners equally represent the voters of Walton County, why do we even have districts?