Hi. Im a rank beginner and the mouthpiece that came with my Buffet e11 Bb is a vandoren m13. The recommended softest reed, as per the vandoren chart, is a 3.5. Because I am just beginning, and developing my embouchure, I wish to use a 2.5 vandoren reed. I have played this reed on this mouthpiece the couple days I've been playing, with decent results. Is it OK to keep using this soft of a reed on this mouthpiece as I am learning, or will it cause me to develop a bad technique that must be corrected when I move up to the recommended 3.5? Or, should I just go ahead and switch to a 3.5 and learn on that, jumping into the deep end, so to speak. I do not have the money to switch to a more beginner, softer reed-friendly mouthpiece. Thanks in advance for your answers. Jason