I’ve owned two Ti Walkers (one being one of the dimensional sources for the Ti Vayder), two ****Runners, and a Ti Vayder.
All three are obviously very similar and nearly identical and objectively good yoyos, but there’s subtle differences between the three that are hard to articulate. The Ti Walker does feel a tad lighter, for whatever reason. I personally enjoy it a bit more than the other two. The Vayder is newer and hasn’t been fiddled with as much so it is noticeably smoother, but it doesn’t have that very subjective ‘it’ factor like the Ti Walker does.