Though all SFI gear was very good and in some cases excellent,there are no people that were in the developement of SFI.They all have moved on.I believe Glenn Dolick was the last one and he left 4 momths ago.SFI is really no longer since it was bought out by Paradyne.They have been concetrating on the Anthem line for HT.I would suspect there are no real personal that are familiar with any of the SFI tube gear.Too bad as it was once one of the best comapnies to deal with.
