It's not the CRM or the sales rep. It's the customer. They are either interested or they are not. If they aren't responsive after a couple of days, the only way you're going to get a response is buying bugging them enough to tell you to leave them the hell alone. You're either being blocked or they are using their spam email account. For crying out loud think about what YOU do when YOU send a "lead" in for something. I have a Yahoo account I NEVER look at. It only exists to get my "10% off your first purchase." We should save ourselves the time and effort. If they aren't responding, move on. Even if you do pull out 1 out of 50, is it worth annoying the hell out of the other 49? I know some vendor is going to jump in here at some point and say, "Well our service increases lead response after... by X%" No it doesn't. Just stop it. I've seen all of your services. They don't work. You aren't changing customer behavior on this one. I consider myself one of the most open-minded dealers out there on any subject, but I'll die on this hill of negativity on this one.