Y-Weido is a retailer and is affiliated with a manufacturer. I presume he sources his products the same way any retailer does via purchases from the manufacturer. Since many Toy Soldier products are contracted to China for manufacture, I would expect they can be sourced direct from the manufacturer and at a low cost if the products are seconds.
Y-Weido carries some unique pieces; Ballista, Romans, Eagle Design Panzers etc. He cites the makers of the products he sells; so their is no deception as to sources. I asked about the source of the TCS Kingtiger I purchased and was informed that they were a preproduction sample run that was rejected by TCS. The manufacturer was selling them to recover the production cost. I received an honest response from Y-Weido to my question and this was confirmed by Brian Levy at TCS.
The quality of the proprietary products is very good. The Eagle Design Kingtiger and Country Honor Scorpion compare favorably with other manufacturers products IMO. None of the products i have purchased could be considered copies.
Y-Weido is very responsive to questions, ships quickly and the products are well packaged. I could not ask more of any retailer.