[Toku57]

Yeah, it seems with most bike flashes there's one that stands out for each make and model. For my Concours, it's from Shoodaben Engineering, commonly referred to as "Steve's Flash" after the guy who owns Shoodaben. Steve is to Connies what Ivan seems to be to Vulcan 1700s. He has been active on the main Connie forum for years and is widely acknowledged as the tuning guru and is intimately familiar with the workings of the Connie's engine.

After watching the Moore's Mafia vid, it looks like Ivan's is the clear choice. By his own admission, Moore's power improvements are very modest but provide a smoother throttle and cooler running temps. But Ivan's does that while providing impressive power gains, so Ivan's looks to be the clear winner and I would guess it's because he's devoted a lot of time figuring out the best flash for the 1700.