The tapered bearing won't change the ride quality. it has more to do with them being able to tolerate the forces that modern radial tires exert on the bearings over the original style rollers. I ahve had both in mine, and really didn't notice that much difference in how it drove, other than maybe a bit less wander.
Weellll....It will change the ride quality if your old bearings were bad. But you mean compared to a new set of either style bearings.
Ball bearings have a single point of contact, where as tapered bearings spread the load over a broader face. The tapered bearings should have a longer life.
So what is "TPP" and what is their website link? I am unfamiliar of what that stands for.
Thanks.