Sumo rims are great.....They were original eqipment on the Diamond Back Reactors in the 90's. I have had lots of Sumo rims in the past, I even had a NOS black set that I got chromed then laced them up to GT Superlace sealed hubs.
For me the top 3 brands of 7X rims would be Araya, Ukai and Sumo's.