The YJ 4x4 Speed Edition cube is the premium 4x4x4 type of puzzle made by Yongjun, designed for speed solving.
Customer Note: This is the premium YJ Speed Edition 4x4 cube. It is superior to the lower cost YJ Promo Edition (6cm) or standard 4x4 cube sold at other stores.
Posted by Unknown on 16th Dec 2010
This cube's outer layers turn really well, even without being lubed. The inner layers are a huge problem though. They are ridiculously clicky, which gets very annoying. They also mis-align often and require fiddling of the middle layers to re-allign.
If you modded this cube it would probably be great.
Posted by Calvin on 17th Jul 2010
I have a video review: http://www.youtube.com/watch?v=0LuXIIjIoR4
I love this cube and prefer it over my QJ. I Pi-Modded it and it's beastly now!!
Posted by Bob Doyle on 6th Jun 2010
Works great, I bought it to replace my awful Rubik's Brand 4x4 and I love it, the only problem is the clicking on the middle layers and it only pops occasionally if you get rough with it, but during a solve it have no problems, and it's cut a minute off of my solve times with a Rubik's 4x4 ( now 4 min avg ) A pin mod gets rid of the clicking and works really well.