I’ve paddled rivers in the South Island of New Zealand, the Wilkins River and Buller River up to about grade three. I’ve also been on the Shoalhaven but at low water levels so not a true test.
Out at the Penrith White Water Coarse I’ve also completed their white water course in kayaks, I know they’re not the same thing as a packraft but it gives you white water experience never the less. We also learnt to roll but I haven’t tried that in the packraft yet as I have yet to fit thigh straps.
I have extensively paddled sea kayaks too so have some experience in moving water.
Obviously the Franklin is a serious undertaking and I would expect others to realise that too or otherwise they are kidding themselves.
I do take risk management seriously, I fly a hang glider and paraglider so know the concepts of being responsible for your own safety, you fly with preflight checks and suitable training.
But I do like to have fun and have had some delightful experiences in the outdoors, and am really looking forward to this one.