I wanted to make this writeup the first reply, but turned out the post needed admin approval and I was at track when it was approved. Thanks mods for properly re-categorizing it 
Here's my experience with my first set of NOVAs on my Tynee . I just corded them last week.
TLDR; I think they’re the best on the market right now
Got a set of 6" Nova’s at ESK8con, and put them on my Tynee. On a slick surface like at esk8con, they were WAY grippier then the BKBs that I had on there before.
Kinda stupid, but they gave me the grip to do a U-turn in a single parking space
https://forum.esk8.news/t/the-single-parking-space-challenge/83012?u=tuckjohn
Durability
I wanted to use my set to do wear testing on them for the mboards guys. The rubber compound is super soft (hence the grip), so I was worried about longevity when I first felt the tires at pre-esk8con. I was very presently surprised how long they lasted.
My mileage is definitely the worst case scenario- I weigh 200+ lbs, and I don’t think I rode in a straight line for more then 100 ft for the entire time I had them. All of these miles are hard carving and track racing. A casual rider could probably get 1500miles+ on their set of NOVAs.
100 Miles
160 Miles
Coned from track day racing
Also, I raced my Tynee at Electrify Expo Phoenix because Nothing Fancy. fried itself before the expo. I think the 90F weather and lots of track racing (30+ minutes throughout the weekend) really accelerated the tire wear. Coming off the track they were too hot to touch. you could cook an egg on them.
I also rotated them front-back when I was out there.
~210 Miles
Coned super aggressively from racing in Phoenix
At this point, this was the kind of stuff I was getting up to
240 Miles
Corded two tires in the same night. Front right and rear left.
Also, The tubes took an absolutely TRASHING in the 240 miles that I rode them. Incredibly, every one of them still hold air just fine.
I rode them for another easy 10 miles (just groceries and work commuting) before swapping out for my old set of BKBs. First time I went to turn, I nearly faceplanted from the increased slip angle/lower traction of the BKBs(explained later).
I also bought a set for Nothing Fancy. The 10 miles I’ve ridden on them have been fantastic (videos in the build thread)
I balanced them last night and they needed 2-3 wheel weights each. However, I did slime the tubes, which is probably what make them out of balance
Durability Comparison to BKBs
On my Tynee, I’ve been through 3 sets of BKB tires over the past year or so. I consistently would bald a set of BKBs in ~250 miles, and cord them in ~300 miles.
Given that I thrashed this set of NOVAs harder then I had with previous sets of BKBs… I say they’re roughly equivalent in tire life? Especially considering the absolute torture test that was Electrify Expo Phoenix.
The Nova tires definitely wear much, much faster then the BKBs, but makes up for this increased wear rate by having a lot more rubber before cording.
One interesting thing I noticed was their grip was better when they were newer, unlike every other tire I’ve ridden. BKBs especially, have the best grip right before they go bald.
Here’s a graph to kinda explain what I mean.
(Both tires get gripper in the first 10~50 miles of riding, as they’re broken in)
Feel Comparison to BKBs
It’s hard to describe… BKBs feel more “slidy”, I think? Both tires feel very controllable and controllable in a slide. While BKBs do have a lot of grip, but they start “sliding” before you reach it.
I tried to draw another highly technical and totally (not) accurate graph to explain it.
“turning angle” being the angle of your deck/tracks and how much you’re pressuring the tire
“side force” being how much turning force you’re getting back
BKB feel like they start to slide more and more, until you realize they’re sliding as much as they’re gripping.
The NOVAs feel more linear, and don’t start “letting go” until near the peak. (Also notice that the
The peak grip of NOVAs are higher) This leads to more of an “On rails” feeling, like Stooge BRPs
idk, properly comparing them would require two boards next to eachother and there might be a placebo factor here. Also note that all of this is from the perspective of a track rider who rarely touches dirt 
TLDR: I returned two sets of BKBs that I had bought to ride with(Sorry BKB!). I’ll be buying a set of 6inch NOVAs when they get back in stock to replace the set of BKBs that’re currently on my Tynee. ESK8 Innovation! 