Looks like a good setup, now I am debating getting a catch can, hose and a couple fittings from this company and having a serviceable setup as opposed to the cold weather kit on my workbench.
Oil Catch Cans
I don't think you'd have ring flutter, as basically the catch can is replacing the CCV and you aren't introducing more vaccuum in the crankcase since having the catch can is keeping it a closed design.
This catch can really looks amazing, and totally serviceable:
Ultimate Oil Catch Can