PROBLEM SOLVED-LESSON LEARNED!
For those interested or who may be having the same/similar problem (i.e. running out of fuel at half tank) Here is a recap of what I did to FIX my problem.
After the bike (08 electra glide) would start to run out of fuel at half a tank for 3 or 4 times, I attempted to identify the problem. Opening the tank up, I could see that the tank was full of trash. The coating that was on the inside of the tank had come off. Removed everything from inside the tank, cleaned it out, and visually inspected all of the parts. I found that the sock filter on the bottom of the pump was deteriorated and the fuel filter in the filter housing was clogged with the coating from the tank walls. There were no obvious cracks in the filter housing or any of the fuel lines in the tank. I went on Amazon and ordered a fuel pump, fuel filter, and pressure regulator. The pump came with the fuel line that goes to the fuel filter housing. Installed everything filled it up with gas and sure enough, it ran perfect until it got to a half tank of fuel left. After reading a number of forum posting of people having fuel issues, I decided to replace the check valve line, though I could not see any cracks or abrasions of any kind in it. I got the check valve line from Drag Specialties. So, I put the new check valve line in and again it started running out of gas at half a tank. Back on the forums again looking for possible solutions. Many people said that it was the fuel filter housing and that there had been a recall on it. Indeed there had been a recall on the housing but the HD people said my bike wasn't included in it. I pulled the filter housing out of the tank far enough so that I could see it and still run the pump. When I turned the pump on, there was a steady flow of fuel out of what looked like a port on top of the housing above the regulator. Checked forums and saw 2 instance where people had said that this was not supposed to happen. Called my local Harley Service people and explained that I had fuel spraying from the port hole. They said, that it should not be doing that. OK, so I took the housing out and pulled the fuel filter out. The filter, after only a couple of weeks, had started to dissolve and had a number of cracks in it (again, stay away from the cheap Chinese crap!). So, I went to Harley, bought a new filter housing, fuel filter, and pressure regulator. I was sure that this would solve the problem since the replacement of these parts would mean that everything in the tank was new. Reinstalled everything, filled up tank, and it started running out of gas again at half a tank. OK, now everything in the tank has been replaced and I still have the problem. I called a different Harley Dealer and spoke to a Mechanic. He said that the port on the housing was indeed supposed to spray fuel out of it once the correct fuel pressure had been reached (be careful of the advice you take when trying to solve a problem like this). Knowing that everything in the tank had been replaced with name brand parts, except for the fuel pump and pump to filter line, I decided to replace it with a Harley fuel Pump assembly. Yes, the Harley pump assembly cost 170.00 whereas the Chinese pump, filter, and regulator, all together was less than 70.00. PROBLEM SOLVED! Bike runs great and I ran 200+ miles before I stopped to fill the tank. Had I gone ahead and spent the money on the Harley part, I would not have had to replace all of the other parts (with the exception of the filter which was clogged from the trash in the tank). I know that it is said over and over on these forums that you have to do a fuel pressure test. In my opinion, and readers of this can take that for what it is worth, if the bike runs great until the fuel gets to a certain level, you have a problem in the tank and a "pressure test" is not going to tell you where or what it is. Even my Chinese fuel pump had good pressure, as evidenced by the spraying from the relief port when pressure was reached. Doing a fuel pressure test will only confirm what is already known. It is a waste of time to do a fuel pressure test in the circumstances where you are running out of fuel at a certain point. You have a leak somewhere!
LESSONS LEARNED:
1-Don't try to save a buck by buying cheap Chinese crap on critical things like your fuel system.
2-Use the information that you get on forums as an aide and not as facts, including everything I have written. I and most of the people on forums are trying to solve problems.
Thanks to everyone that responded to my query/problem. It is most appreciated!
To anyone reading this with a problem such as mine, good luck, I wish you the best!