I don't have the PRO of this, but I guess it won't have changes in the database-structure from "lite" to "pro".
Anybody would try this?
Could be a small parallel install of ibProArcade, try converter, test it and remove ibPro completely again, without touching the vBArcade PRO. I would assist on this... just to know and make sure this is working fine - although I am quite sure it will