I would say then a better comparison would be an SB V2 Pro to the B44, not a partially upgraded sport. Having had both the Sport and Pro V2 versions, there is a definite difference in handling, and the chassis and uppoer deck adds a big component to that.
As for the the oneway thing, On the V2 Pro, I liked the feel of the center oneway for my surfaces I ran on, but again that can be driving style dependent as well. Sort of like how some people like the Losi "push" versus the B4's twitchy-ness and vice versa.
< Team Associated RC10B6D>
< Durango DESC410V2, DEX410V5>