And, just arrived in Rome. Mods and batteries in my carry-on, liquid carried on in less than 100ml bottle in a zip sealed plastic bag, other eliquids in the checked bag.
No problems.
And it's always delightful arriving in an Italian airport. Vaping is perfectly legal. So, got off the long flight into the terminal and vaped away. A guy from Brooklyn waited along side me at the baggage claim, with his hands on his Marlboro's just itching to get outside, as I vaped merrily away. Of course, as I mentioned to him, there are still smoking areas in Rome's airports, which he didn't see as he walked through, so he could have had his .... before that.