The Melody of A Blade

I purchased a new foil yesterday, and I used it whilst I was fencing (obviously). I was surprised to find that most of my attacks were landing, and all of the techniques I used were almost flawless. I then switched back to my other foil, and suddenly, my attacks seemed to fail. So, I wonder whether the foil affects how you fence. My philosophical and common sense screams NO!, but I have to consider it. Maybe it was just a pyschological effect; better foil, better style, but I'm still not sure. Musashi says that the weapon does not matter, if you are good enough. So maybe it does matter before you are not good enough? Do blades matter, or don't they? I'll consider his for a while, and then come up with a good answer...