I happen to own both: .223 VS; .243 VLS. The only reason that I bought the VLS in .243, is because I couldn't get the VS in .243. I currently have the .243 action in the VS stock, and the accuracy improvement was dramatic.
The VLS is not only not pillar bedded, it's not any kind of bedded. Also, the barrel is not free-floated. If you can get the caliber that you want in the VS, for only $60 more, you'll have gotten a bargain. The VS has an H-S Precision stock, which mounts the action on a full aluminum bedding block and free-floats the barrel.
I spent a little time with my Dremel tool and drum sander attachment free-floating the barrel on my VLS. Also bedded the action with Marine Tex. Save yourself aggravation and get the VS.