I'm considering buying a light/laser unit for a pistol. I was considering a TLR-2 but after seeing some people's assessment of it I'm looking elsewhere now. I don't think I can justify the price of an X400. I was looking at the Insight WL1 ( http://www.botachtactical.com/inwlsetalila.html ), but I don't know much about it. Could someone please direct me to what would be a good choice for a light/laser unit?