Hi Kevin, That is great that the Viper is the choice for the Alter Cup. But as an ex-Hobie-16 racer, that would've been so sweet to race one with a spin. Very exciting and challenging. Matt and I loved racing the H-16, wish there were more around here. But we are also loving the F-16. If you can't beat 'em on the H-16, join on a spin boat.