There are a ton of variables to take into account: all the variuos wood types, shell sizes, humidity levels of your area, reso head, port size,laquer or wrap, number of plies, type of plies........etc etc etc
Wood being a natural substance constantly changes as it ages. Depending on what you have on the outside of your drum (wrap/Laquer/etc) also, is there a reso head or large hole in the front? That matters because it affects the amount of moisture it absorbs. All drum companys are different, but I don't know of any that use balenced ply construction so that both sides of the shell absorb at the same rate.
So in summary, no one can truly answer that question for a specific drum, only a
general answer: Most people think they get a more mellow sound.
Don't think that will really help, so maybe just keep working on it, or just trigger and use the same sound for both kicks.
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Starclassic Birch -- Mapex Pro- M Rock -- Ludwig Rocker -- Roland SPD-S -- Pearl ICON Rack -- Zildjian, Sabian, Paiste, Saluda & Wuhon Cymbals -- Yamaha PTX8