"Don’t be comin down off that ladder until it’s done, and done right". The words of a funny but firm Irishman on a construction site.
Whoever did the elliptical didn’t get it right, it’s good you got the gumption after that experience to proceed and got improved results. My friend Bill loves that cartridge, I need to hear his.
Theoretically,(if done and aligned right), improved stylus shape/groove contact yields two nice things in addition to their sound: less groove wear, and longer stylus life.
Better sound, great, we would hope/expect and you got that. but even if it sounds the same, close enough to be as good as, not clearly preferable, you have achieved less groove wear, which will make varying degrees of difference for people.
Alignment is much more important with advanced stylus shapes. Without a few tools and skills, potential can instead be a problem.
On the East Coast we have VAS whom I and lots of people here have great confidence in