It might. Scaling in FCP is pretty good compared to some NLE's. But who knows. Try it and see if it significantly increases your conversion time. Compressor will probably due a better job with all the scaling controls set to best, but again, FCP scaling is good.
I can't remember if I've updated the first part of the thread yet or not - but for most 720 60p I don't even convert. Just drop it in the timeline. I think with compressor doing the retiming you get weird Dali painting frames, hands with hoop shaped fingers, etc., whenever you have a lot of kinetic fast motion (like most of the machete vs. pipe fight). From 60p to 24 I'm just dropping in the NLE, for irregular, non constant motion it looks good and no weird frames. For any smooth constant motion like a car gldiing by or a dolly shot or a canoe floating by, that's when I'd use the time intensive conversion methods I outlined in the first page. For one thing, you need the smooth motion, that kind of instancs is where the slight jerkiness will show up if you just drop things in the timeline. For another thing you're less likely to get weird blended frames because the motion is constant so its easier for the software to interpolate what new made up frame should come betweem the two pre-existing frames.
