Transfer tool from Wii to U - question on separate files

[farlaff]

I am finally transfering content from the Wii to the WiiU (love my save files from ExciteBots, Galaxies and MH3) so my son can keep the old console for him exclusively. But all the virtual console games we have are his (most N64 stuff) and I don't want them to come with the transfer to the WiiU. Do you guys have any idea of what to do? IGN says it is possible to redownload the titles, but does not make clear if it can be done on the U or the original Wii (which would be sweet since we could have copies on both consoles lol). Have any of you ever tried it? Any suggestion is welcome and thanks in advance.