Based on what I know of flyrodding, I can safely say that 90 feet is well beyond my abilities. It always seemed that to get beyond about 30 feet there’s a lift required in your cadence that I could never get the hang of. The other limiting factor was always enough room behind me to get that much line out. Most of my flyrodding was on the Cedar right there around CR, so the trees are pretty thick and you end up doing a lot of roll casting. It works pretty well with cork or foam poppers, since they don’t need ‘air time’ to dry, but with hair poppers, they would eventually get soaked and start sinking (even if you waxed the thread heavily when tying, the hair will eventually soak up enough water to drown it).
I would guess with a WF line, you could get some more distance, probably another 10 feet just from shooting the line. Where are you thinking about heading?