First of all, I love VectorLinux.
I'm a bit of a noob but I have tried many distros in an attempt to resurrect an old Compaq Presario 1200 notebook, and all the VectorLinux distros definitely seem faster than any others, including other SlackWare distros like ZenWalk and AbsoluteLinux. Whatever black magic you have done to optimize the kernel or whatever, it definitely seems to make this a sleek and speedy distro for older hardware.
My one and only big complaint about VL Light 6 is actually a fairly minor thing to fix: the startup and shutdown sounds (e.g., "Initiating startup sequence").
On the first boot of my new installation it was very loud and annoying. IceWM has these turned on by default, and seems to lack any sort of GUI control panel to change sounds, and although a few forum posts hinted at ways to comment-out lines of the startup and shutdown scripts, it seems like the best thing for you to do is have them disabled by default in the distro, or at least make startup and shutdown sounds an optional selection in the installer menu.
When I did comment them out in the root account, I was later disappointed to hear them again when I logon as a regular user. The scripts must be customized for each account, requiring more annoying commenting-out in each account. So, finally I gave up and simply changed to the JWM window manager, for all accounts. JWM doesn't seem to have annoying sounds configured by default, so that worked for me. Unfortunately it is not as good looking as the sweet IceWM dark grey theme that is the default in VL Light 6. But those sounds were going to drive me crazy.
Thanks for listening to my comment, and thanks for some great and amazing distros!