Tom,
It doesn't sound like #8 at gulph Mills was intended to be approached from 20-60 yds. due to the era in which it was built, but no matter. It would be now if they let your group prevail.
The 100 yd. spinning shot would seem to be the best way to approach this hole, as you suggest, but it's not the only way as you further state.
Sixty yards with a lob wedge that drops softly is another. A 20 yd. bump into the bank might work too, I don't know.
I say this, the architect still hasn't tricked me into taking the risk because I am still left with a shorter, albeit more delicate, approach shot. If I am capable of making it, or possibly finding the green in one, then I will continue to take this avenue to the hole. If I continually card bogies or worse, I will decline the invitation, lay up, and take the alternate 100 yd. shot. How many times will the ruse work? It might work any time I
am playing with an I-didn't-come-here-to-lay-up attitude but that is all.
I think this hole still follows a formula, risk for reward, if the willow were removed.