Bob,

I am not probably as experience as most of the people are here but I think that it would make a big difference to just between a hook size 16 to 20. I know that it might not be a big difference between 18 and 20 but 16 to 20 is I think a noticable difference and it just might be the reason why we dont have odd numbers for these hooks sizes. Who knows? I sure dont!

Marko