Perfect Pass

[islander033]

Very good. Furthermore, if you have a handheld GPS you can float downstream to get an approximate idea how fast the current really is, then add/subtract as DB stated above to get your ideal speed...

Wouldn't your stargazer do this for you if you just float down stream with it on? No need for a hand held then.

[Fiveflat]

Wouldn't your stargazer do this for you if you just float down stream with it on? No need for a hand held then.

Ah yes, the Stargazer is GPS isn't it...

[Moki]

Or you can have the rider give a thumbs up for faster and a thumbs down for slower.