Welcome aboard, Pedro. You provided just the right kind of information. For shaping and precision, you want a small blade, like a 4/8. For your heavy growth you want a heavy grind like a wedge. I believe there's a DOVO 4/8 wedge out there. Someone who's more into DOVOs should be able to tell you where to get it. In any case have it honed by Lynn or Joe at least the first time around.