The Bio 400 Tour with Rip 16 at half tension is the best Dunlop I have tried out of the Bio line and I have tried a lot. Nice controlled power and the Rip String lets you take a nice swing and keep it in play. I had to get adjusted from the the god awful powerful Silk string to low powered RIP, now it feel just right. Great spin and feel.
Get in the stock market now, its never a bubble.