Queen cell finisher, frame placement

[gscforester]

I am planning on starting to raise a few queens this year, and am trying to plan ahead and get all the equipment I need together now. My question is with the queen right finisher hive. Since I have to have a queen excluder in place to protect the cells, and I use queen excluders under my honey super anyway, can I use a medium frame that I modified to hold queen cell bars in my honey super? It seems to me it should be okay, but I know the majority of the bees will be with the brood at night, will they neglect the cells? Any advice will be appreciated.