This is a quote from Native One on the .com site:
Quote' Just to let you in on a little secret, with Gi Pro you don't really need to remove the secondaries as they are opened the whole time anyway. Why remove them when you install the GiPro and they are open in first through fifth gear anyway? When Greg and I were installing the triple filters and the Preds, we noticed the bike was in first gear, moved it to second, third, etc, and the secondaries ARE open in every gear with the Gipro installed.
Native One Unquote'
Actually this is the thread from the .com site, R3 Owners.com :: Log in (I hope this is okay and does not breach forum etiquette)
Hence my reason for believing that they were held open via the gipro and did not need to remove the secondaries.
Peter