Anyways after alot of weeding down selections within sentinel, I am not getting any traffic, maybe one every few minutes, but know there is alot more going on. I have the standard antenna on it, does that need to be replaced? Any thing I need to be looking for in sentinel? I have added all the service types.
First, what are you attempting to listen to? Which agencies or businesses or departments, etc? If you can provide us more details, we can offer better suggestions.
If you're in West Columbia, you're in Lexington County. All Lexington County public safety agencies operate on the Palmetto 800 system, which is a P25 digital trunked radio system. Did you "weed that out" or leave it in? Sheriff radio traffic is encrypted and cannot be monitored but most other public safety is in the clear. You'll also hear a good bit of state agency radio traffic there.
Make sure you've added the Lexington County Simulcast site to the system you create for Palmetto 800. That's the site that carries most/all of Lexington County public safety. Note that it is simulcast, which is a type of radio technology that the 436 and other scanners that aren't the SDS models struggle to receive. That could be part of your reception issue. You'll hear other county agencies on the Lexington site as well - maybe some Newberry Co, some Aiken Co and some Calhoun Co traffic.
If you think simulcast might be your problem, try monitoring the Harbison site to the north or the Sandy Run site to the south. Both of those carry some Lexington County traffic.