I don't paddle a Huka, and I don't know the paddler ranges on the boat, but try this: move the seat to a centered, or even further back position. at one point I tried moving the seat in my creek boat way forward thinking that it would boof more easily, and be less suseptible to squirting out of holes. But all this really accomplished was making the boat way squirley; ie dropping rapids backwards. I have found that keeping the seat about centered, and maintaining a forward, aggressive body position helps me keep my line through rapids (not always). Hope that works for you.