I'm not familiar with this game, but I read somewhere that the brain can create new pathways. So it is possible. Perhaps visualizing is the way. Visualize that you are in the pros when playing and when not playing, say all the things you are likely to say. The more practicing you do, the better. Play some of those pro games: The adrenaline will help you a lot your first time in the pros, and then the muscle memory kicks in. Also, cut yourself some slack. A few seconds may not be that bad for your game. It could actually be faster than you think. Keep your mind on the game, you probably have a lot of muscle memory and "autopilot" happening. And you can make a grand announcement if necessary... "I know I stutter some, but I'm throwing myself in to get better. FU to the nay sayeeeerrrrs." Some people would laugh and enjoy that attitude.