http://www.cricketbatwillow.com/blades-gradingI judge my grading based on what JS Wright say. Grading of willow is done on looks only. (I'm not getting into density or crown willow for pros here) Grading doesn't take into account ping or pickup, its all about the looks of the willow. If you want to grade that way that's fine, but it's not the traditional way. The link above is JS Wrights take on all this.
A Grade 1 Blade
A Grade 1 is the best looking blade, though it will not necessarily play the best. There may be some red wood evident on the edge of the blade. The grain on the face will be straight and there will be a minimum of 6 grains visible. There may be the odd small knot or speck in the edge or back but the playing area should be clean.
A Grade 2 Blade
A Grade 2 blade is also very good quality and normally a larger amount of red wood can be seen on the edge of a blade, this has no effect on the playing ability of the bat it is purely cosmetic. Again there will be at least 6 straight grains on the face of the blade with maybe some blemishes, pin knots or “speck” visible, we also put the top 2% of the excellent quality butterfly blades that we get into Grade 2.
A Grade 3 Blade
The blade as it is supplied
This is a middle grade that is produced in much higher numbers than the top grades and it offers very good value for money. A Grade 3 Blade has up to half colour across the blade which again has no direct relation to the playing ability of the wood, it just has less visual attraction. There will be a minimum of 5 grains on the face of the blade which may not always be perfectly straight. Again some small knots or butterfly stain may be present with sometimes more prominent “speck”.
A Grade 4 Blade
A Grade 4 Blade is normally over half colour or contains butterfly stain (see our page on Imperfections in Willow). It will still play as well as the other grades. Any number of grains are possible with often only 4 grains, the willow containing ‘butterfly’ stain is very strong, there could also be more “speck” and other faults.