I happen to know Bob Letterman of VLS (Verlinden, Letterman & Stok) from the early 90's and others (Verlinden, Lewis Pruneau, etc...) associated with the company. I also attended their first Convention in 1991. Verlinden and VLS went their separate ways years ago and I believe the two are separate companies. Many consider the initial Verlinden affter-market products as the beginning of the Golden Age of Modeling. I certainly do. And The Verlinden Way' series of how-to books certainly rank up there with Shep Paine's modeling toombs.
However, as early as the mid-90s other after-market companies soon became more specialized, innovative and more flexible than Verlinden and soon the company was out-classed in many areas. Most of their PE and resin upgrades were notoriously difficult to work with, and their resin figs soon fell by the wayside as companies like Alpine came along...although sad, my modeling efforts will not suffer as I haven't bought a Verlinden product in years. But I do recognize their groundbreaking efforts that forever changed the way we all approach and build models...