The Anglam with a ceramic KK. Outrageously smooth…
General Yo Hat Trick with a clean AIGR bearing.
Battosai
My old Pink YYR Dreadnaught. This thing is so smooth you literally can’t feel it on the string. The only thing that tells me it is spinning is the axial stability. It is by far the smoothest yoyo I have ever owned.
It is only this particular one though. The two others I have owned were typical YYR. Smooth; on par with OneDrop for sure, but not like this one. 
Did I mention the Messiah?
AMAZING yoyo. Dead smooth, perfect play.
Surprisingly enough classic.
I don’t know if I’m lucky or if I simply don’t care about vibe, but all my unresponsive yoyos, which even include a plastic protostar, have unnoticeable vibe. The only exception is my MagicYoyo N12, which vibes like an epileptic crisis.
I feel that the yoyos have reached a point that vibe is simply irrelevant. When I first started looking for yoyos, the word “smooth” always caught my attention and probably was the main factor for my purchases. Little did I know how vibe is meaningless and does not affect tricks and play (granted, with too much vibe, some grinds will feel awkward). Thankfully, all the smooth vibes are great throws, so even using the “wrong” attribute to pick my yoyos, I couldn’t be happier with my ever growing collection.
A much more “useful” thread would be “What yoyos can you actually notice vibe as you play?”. And I would select my $18 N12, which I still think is a great yoyo for it’s price, even vibing like a muscle car.
So, what metal unresponsive vibes the most for you? Go answer it there What's the vibiest unresponsive yoyo you ever owned? Is it a bad throw? - General Yo-Yo - YoYoExpert
Werrd Hour
YYR Messiah
YYF Dna
YYF 888 2008
Zeekio Core. Proper Tuning + Perfect Bearing = Smoother than the DNA.
This thread is what’s the smoothest yoyo u ever owned. Not what’s every yoyo u ever owned
that wasn’t really necessary but whatever.
I just put a freshly lubed and cleaned bearing in my metal drifter wow lube helps.
Got my Wrath today. Not my smoothest. I may be able to tune it. We’ll see. I was expecting smoother based on this thread. That said, it is an awesome yoyo.
My TP MaxBet remains king of the smooth of my collection of 31 throws.
I might just have been lucky, but I have 5 N12 yoyos and they are all super smooth, unless my throw is dreadful.
My torrent II it is so smooth and it sleeps forever!!
My beat up (by beat up i mean over 10 dings, and tons of scratches, was my first throw, got me into yoyoing XD) Dv888 still plays like it just got out of the box, my YYJ classic is on par with my Dv888 in terms of smoothness
Granted I’m new to yoyoing, but I’ve been very happy with my yyj classic. I’ve replaced stock bearing with a KonKave bearing, and I’m also planning in putting liquid silicone in as soon as I can convince myself I can go a day without throwing!
Stock Code 2 … Wow
My Magicyoyo n12 is very smooth, slightest fingernail test vibe. Suprised me by how it played like a $100 yoyo
Got a Summit… Dang. It’s like throwing butter. Smooth and perfect. Smoothest throw I’ve owned so far.
My smoothest throw would have to be my First Blood Brother, I just love it’s play on the string. 