At 200 on foxton the only moves you are making are to avoid getting stuck All the holes are gone and the river slows way down. Just my observation from another newbie that has ran it this year at 250 and 470. In a ducky it would be super chillDon't take a new guy in a ducky down foxton. It may seem gravy to us... but it requires a few moves that can dump someone in a rough little creek to swim.
I did it once with a bud who said he could handle it, and had been in a ducky a few times before... he took a good beating in a few spots, and didn't have the fun I was hoping he would.
Honestly, I've taken beginners down Sf S platte at this level before... it's slow, chill, and low consequence. Boring for you... but a good intro run.