One other thing to remember with all the high-zoot "roller-less" joints is that they're not meant for standard 4-wheel duties like might be encountered in snow, ice or other on-road conditions.
In other words, they're not meant for high speed continuous use without maintenance.
That's fine for racing, where you might not mind pulling and re-packing them after each event, but not at all acceptable if you live in a climate where you lock your hubs at Thanksgiving and don't unlock them until Easter!
Or if you drive on the highway to get back to your trailer and don't have lockouts you can unlock for the 75 mile journey.
Or if you expect to do some casual snow-country wheeling where you might lock them in to go to the ski resort and not unlock them for a week.
If you are just going slow in the parking lot or a trail, or fast for short periods of time, you're fine. But if you plan to get out on the open road at all for any distance at speed, you should pick a different joint.
Paul