Found it, the property was missing from the second control.
Line 61 in (FeaturedProducts.ascx)
Changed this:
<asp:LinkButton ID="hylink" Text='<%# DataBinder.Eval(Container.DataItem, "ModelName") %>' runat="server" CssClass="SmithProdtext" OnClick="btnProductLink_Click"></asp:LinkButton>
To This:
<asp:LinkButton ID="hylink" Text='<%# DataBinder.Eval(Container.DataItem, "ModelName") %>' runat="server" CssClass="SmithProdtext" OnClick="btnProductLink_Click" Visible="false"></asp:LinkButton>
Thanks for the tip!