I use Imini and Mini V. I realized some of the presets in the Imini which i really like were not present on the Mini V and so i had to find out how to get them to the Mini V. I searched articles and couldn't find any. But trust me there is a very effortless way.
ON the imini, choose the preset you want to export and hit save. It would open a dialogue asking you to save it as percussive, keyboard etc. Choose you option and hit save. *watchout, change the name so you dont overwrite the original preset.
open Itunes file sharing and locate Imini and voila you will find your preset.
choose save as and determine the location.
open Mini V and choose to import preset, then locate your preset location and import.
navigate to my presets on the Mini V and voila you are ready to go.