At this point thelostMid might be the only person on this planet to both have the ability to work the lathe AND the devotion to sound to give us "raw" wood data as to their synergy with the Magnums. Too much focus is placed on fancy wood looks and business interests. We might have to re-think this approach and base our wood choices on the different sound implications of different woods/finishes to finally see our sound expectations and preferences be met on a more objective or data-related basis.
In my view there are two approaches that stand opposed to each other. Firstly, there are those who look for neutrality, the "raw" sound without any change or color coming from amps or drivers or sleeves. As a result they shy away from wood because it definitely does something to the sound. Secondly, there are those who are out to tune the sound to hear the warmth, body, bloom or whatever they like to hear when listening to music. As a result they go for wood, certain drivers, amps, eq-ing, modding and tweaking. I guess Rhydon, using alu sleeves, would fall into the first category. Others, myself included, may love the "wood sound" more. When tuning the drivers to my preferred sound signature by experimenting with woods, diameters, profiles, tweaks etc. I am doing something to the music myself getting it to please my ears and soul. That's a big part of the fun for me. That's the way I like it and I do not really worry about what others think about it. To each their own.