As far as grade rating, I would consider wood use in Dufferin SP as A grade, SP from a custom maker as AA, and very top end custom cues as AAA. An A grade would be considered as good enough for a cue, AAA grade is cream of the crops, and AA grade could be anything in between. I also want to clear up that grade is classified as to the straightness of the wood, density of the annual rings, and color of the wood, nothing else. I want to clear the misconception that AAA grade materials automatically make good playing cues.
The problem with wood use in Dufferins is that the company mass produce, and they are in the business of competitive pricing which does not allow them to put their materials through the long process of aging as compare to custom builders. Custom makers can afford to sit on a small selected supply for many years because of their higher returns when their cues are finished and sold, where as Dufferin doesn’t have enough materials to turn out cues, time is money for a company like Dufferin. To compare the playability between a Dufferin and a custom would be an unfair test, since they were not subjected to the same building process, if they both were then it would be a lot more interesting.
Why custom makers don’t use A grade? Would anyone pay large amount of their hard earned cash for a custom cue that cosmetically look like a Dufferin. No. Custom makers use high grade wood because they have high paying customers with high expectations, including a cosmetically good looking cue. Would anyone pays 50gs for a Honda Civic with all the Corvette performance, or would you expect a silver bullet Corvette and the killer looks for your money? That’s why you don’t see anyone trying to build 50gs Civics, not that it’s impossible but because you wouldn’t sell a single one. (This is off the subject for all the non-believers that a Civic can’t be tuned to have the performance of a Corvette: the technology is mind blowing, it might takes six digits figure for the process though) Custom makers can yield more money by using higher grade woods. Whether a custom maker is using A grade or AAA grade, he puts in the same amount of time, energy, and enough, so why not use higher grade and charge/make more money.
I am a recreational guitar player, and I have read up on the subject concerning wood grade’s relation to how good a guitar sound. I have learn that master guitar builders do not believe in high grade equates to how good the final product performs. They select by tapping the wood for the sound quality of each piece, then construction technique and craftsmanship comes into play. They could be blind for the sound test. That’s a special skill that would takes years or even decade(s) to acquire, and some may never acquire it no matter how long they are in the business. I think this hold truth to cue makers as well, some just have that special skill which they just know by mysterious ways that a piece of wood is good, and if profit returns was not a concern I think you would see more A grade looking material in cues that are considered high playability cues.
In a blind test, it would be hard to distinguish a cue made from Rosewood, Cocobolo, Bacote, or Ebony, let alone trying to distinguish between A grade and AAA grade, under the condition that the cues are seasoned, built, and constructed the same way and by the same builder.
We all know the ending to the story of the little ugly duckling! I am a believer.