My excitement for the Siren is slightly diminished by the big finger guard. The same has been true of the Waterway for me. I did come very close to buying a Waterway a couple of times.
I totally see why the guard is there, and for the application why Lance designed it that way.
I've learned that i don't mostly need or care for fingerguards on knives. I think this comes from decades of using Mora knives so much.
I may get a Waterway and/ or a Siren anyhow, and maybe I'll even start fishing again! They are both very nice designs and I love my LC200N.
Back on topic, I think Chad offers good advice to follow your gut here.
Clinton and Slysz are both outstanding designers!
Also very cool that Chad made prototype(s) for Lance and Spyderco!