Oh, I was just confused by your statements, lacking context.

I have a progress bar/slider implementation, too (see my screenshot), done with SkinBox (it could be rehauled; to get past xLabel not having an event to handle releases outside of the Label I'll have to kill the seeking timer OnLeave, as you just mentioned; but I'm using SkinBox for its handy variables anyhow, so it's a moot point to replace it, unless I really wanted gradients :P ).

Yea, I have to agree it's a crummy, slow way of seeking. I use it more as a progress indicator than for seeking, though. For when I less often seek, it's good enough for now.

I'm also using this whole thing for resizability and colorizability :)

My ideals aren't as far-reaching as yours are though, since I have size constraints for my design. At a point things could look ridiculously disproportionate, since I only care about sizing in one dimension for this theme.