Originally I was thinking the same thing but then I priced things:
12 M at 23 per meter: $275
8 end fittings at 30 per fitting: $240
The big issue with this idea is its special order and there is no guarantee that the new end fittings will fit on my sheaves. Spending over $600 with no certainty of it fitting is problematic for me.
3/8 pex fits almost perfectly in the existing end fittings. Im not sure why this wouldnt work.
The only thing I can think of is that it needs to be a stiffer conduit because when pulled the cable will want to line up and take the shortest distance between the sheaves which it cant do because of the path it takes from the wheel
to the quadrant. This would put expansion loads on the end fittings at the sheaves but how bad could it be.
Maybe I should just try this and see how it works?