I fully agree with Drs. Placik, Moelleken and Pearlman. It appears we have all used the methods you describe and have reached the same conclusions.
The VY lip advancement is now of historic interest only. While it did evert the lip and showed more pink, it did so with permanent scarring in the lip and prolonged swelling. Most of us no longer use it. The same is true with Alloderm and other human cadaveric skin scaffolding placed in the lip. The "take" was unpredictable while the swelling, fluid collection, irregularities and cost were significant. Few still use it for this application.
If your lip is too long - a lift lift with scars placed at the underside / base of the nose is the way to go. The scars however are permanent and as a result we need to proceed with caution in ethnic groups that scar heavily.
Lip fullness can be achieved easily and predictably with several fillers on the market such as Juvederm and Restylane. Their cost is reasonable as is their duration. In the future, better and cheaper products will become available.