I think Kiesel's radiused pickups have all been good. My two favorites are the first gen radiused dual coils and the 2nd gen radiused single coils.
The 3rd gen radiused single coils I only used for a hand-full of days, until I returned that bass. But I liked them a lot.
The 2nd gen radiused single coils have a really great ability for staccato techniques. And I would say they have a warm purr, rather than a big growl. I thought the neck pickup by itself, really sounded fantastic. It had a really great texture to the tone.
The 3rd gen singles had more crunch in the high mids and also seemed to go a little deeper in the lows. And with both pickups on, they had more of that 'compression' quality that you hear in a Fender Jazz bass. However, that was also a completely different bass and strings. So its not a perfect comparison. I used 1st and 2nd gen singles and dual coils, in my Icon 5.
What I like about Nordstrand's pickups, is their extension in the lows. I prefer to play my basses passive when possible. and I don't want to do a lot of EQ-ing. And Nordstrands give me fuller, more immediate lows, without much EQ. And without needing to exaggerate my playing style. Especially their blade pickups (Big Blades, Zen Blade, etc).
However, I currently have Big Singles in my Icon and they have been in there for over a year. My Icon seems to like them, along with GHS Round Core Boomers, for strings. It has pretty much given me the slightly roided J-Bass tone which is one of the tones I like to have. So.....my Big Blades have been sitting on a shelf >_>
Nordstrands also tend to have a slightly "round" quality to their overall tone. Except for maybe the Alnico 5 Big Rig and the old neo dual coils.
Kiesel's pickups seem to focus more on mid and high mid detail. and are less rounded in the overall tone. The lows sound good, but are more balanced. Rather than a bit exaggerated. Except for the SCP pickup for their PB bass (P-Bass style). It has a bunch of lows.
My favorite pickups ever for overall tone, but also for easily pushing a lot of lows through my cab: Are Lollar reproduction Vintage Thunderbird pickups. I have a set modded into a Fender Jaguar and they are incredible.
Big Blades are the closest any other pickup has ever come to that tone and feel, for me. Those pickups definitely give your cab a workout. So, I have been really surprised that I never bothered to swap back to them, after I installed the Big Singles!! I will at some point, to do the comparison. But, I really like Big Singles in my Icon.
My Icon 5 is 9lbs with a strap.
The Surf Vader I ordered (and returned) was a featherweight, at 7.4lbs with no strap. It was a 4 string.
Those Osiris are such a good looking shape. I've always wanted one. Its looks awesome in that video!