Here are RNW's ratings and reviews. These ratings are useful because RNW has his/her own standard and will rate and review the ping pong equipment accordingly, giving you accurate and useful ratings and reviews to aid you in your next online purchase.
This new Sanwei 40+ ABS ball has identical bounce to the Nittaku premium. However, the seam on the Sanwei is superior and durability is far better. And they are significantly less expensive than the well known brands. The new ABS balls sound and feel more like the celluloid ball.