there quite fidley at that size, if the roots are not commin out the bottom of the pot yet i would leave them to get a bit bigger , but can be done now ,don`t forget to plant them deeper than they are now

i agree i would leave them as well,mine are about the same size,i dont intend to move mine for another 2 weeks or so.then i chop the roots a bit and replant them when they ar a bigger size to handle and the weathers better.