I am currently following a therapy (ARTS, avoidance reduction therapy). It involves using no tricks. So no extra words, no skipping words. No nothing. Just let it happen. I can tell you that it is fucking hard to just get stuck at a letter for 5 seconds (G-G-G-G-G-G-G-G-G-Great) The part of letting it happen and be fine with it is hard for me. But I do know for a fact that using tricks, they only work for a few months and then you have to do another thing and so on and so on.