I'm sure segwit is great and everything, but I can't afford a headache today if I somehow fuckit up.
I don't see any possible mistake that you could run into while not doing anything not out of the ordinary.
I'll try another segwit transaction some other time when I have a more clear understanding of all implications of using segwit addresses from core.
I think I will not use SegWit address until the process is more user friendly on the Bitcoin Core client.
Use a different wallet in the meantime (if you want to use SegWit), as I've said.