I see the situation. And see how to act in this situation. It is impossible now to buy a B3! You need to wait KB3 and buy it! When KB3 will be officially recognized exchanges. If you buy now B3,you may see sales KB3. So it will be cheaper to buy after that. Rally down KB3 can be substantial. The best strategy is to wait for the official introduction of KB3,and buy it!

And who can guarantee that after KB3 will not be MB3?? Remove KB3!