Thank you for that explanation. It makes sense. The comparison involves both the different cartridges and the different arms. I find it difficult to attribute the sound heard to just the cartridges. Do you have a preference between the two arms, and also between the two cartridges? I always find it difficult to make such comparisons, even if only one variable changes, because the set up process may always be slightly different. I guess we do the best we can until satisfied.