Bob,
As Bill mentioned, I do have experience with a 5-string med King w/ Ebony lams. Unfortunetely I never played a maple/walnut version for comparison.
You said, the B string wasn't particularly good. Are you refering to sound or string tension/feel?
If sound is what you are refering to, then by all means you should notice a difference between walnut and ebony lams. You will also notice a difference in weight. I really don't know if my ears could hear the differnce between purpleheart and ebony though.
The one thing I can say about ebony is that the harmonics are cyrstal clear and sustain a long time, I am not sure if that is true about all Alembics or just Alembics with ebony lams. The presence/sound of a G played on the B string is very powerful on my bass. I also have, in my opinion a very good rig to achieve a full sound.
My new bass, is 34 with ebony lams, but Series II electronics, so I won't beable to make a direct comparision. I went with a long scale not because string tension. (I never had a complaint about the feel of the B string on a med scale bass. But I am sure I will notice a difference in tension between 32 and 34.) The reason for 34 scale bass is the up higher fret spacing will be a tad more wider. I have fat fingers.
I hope tis helps a little. I can answer more specific questions if you have them. I wanted to give you my general observations.
Later,
Kevin
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