Pros and cons of attending Public Speaking Club

Pros and cons of attending Public Speaking Club I read in some posts here that attending public speaking courses/clubs might be useful for your self-confidence, and that it may make you treat you stutter easier and finally reduce your stuttering. I see some point here, but at the same time I expect attending public speaking club to be connected with lots of stress, because I will stand in front of many people and stutter. And may be I will overcome this stress, will accept my stutter and improve my life quality, but may be I will just get lots of stress and worsen my psychological state and stuttering. So Could you please share your experience about attending public speaking club (if you have one)? Do you think that it is a good idea and why? Can it worsen my stutter or Will it anyway make me feel myself better?