Well, I sent the duplexer out the other day to be tuned and low and behold, the duplexer wasn't even close to being properly tuned. As of now the duplexer is tunes 92dB from the TX and 82 dB from the RX. When it arrives on Monday I will do another test and see if there is much difference. I do want to thank everyone who commented. As I said before I am rather new with repeaters and I am learning quite a bit. I was told from a few pros that the LMR400 should be ok for the time being. The antenna I have set up should also be ok [though they said I should look into replacement eventually as it is not exactly set up for repeater service.] For now though, just getting everything online and working is the goal, Fine tuning and tweaking can come later