For mixed use go with road drops. Yes track drops provide more clearence and that means they are better when riding in the drops but that clearence comes at the cost of a good position on the tops. I assume the vast majority of your riding is going ot be on the roads where you will spend far more time on the tops of the bars then the drops. Even when you are on the track you will probably spend alot of time on the tops too. Why get a bar thats going to be uncomfortable and possibly injure for a very small amount of time you spend in the drops.
Also despite what 11.4 says don't get extra narrow bars.
I think 11.4