Anyone Cap off the Oil Cooler Lines?

[argo]

First off: Sorry I've been gone for a while, but I have been crazy busy at work. I have a question I have been pondering lately and wanted to see if any of you have any experience with this.

How many of you have capped off the oil cooler lines on your engine? If so, did you remove the cooler bypass valve? I do not use my Suburban for towing. I have my F-150 for heavy work... the most this will ever carry is 8 people and luggage, so the potential for leaks is not worth the risk. The reason I ask is because I am not thrilled with my hot idle oil pressure. My line ports are capped, and at hot idle I only have about 15-18 PSI oil pressure. According to my GM service manual 10 PSI is the hot idle spec, but I would like to see over 20 PSI at hot idle. I am not worried, but I still don't like it. Oil pressure is fine at higher RPM. At 60 MPH I turn 1800 and I have 40 PSI, and at 75 MPH I am turning 2250 RPM and I have just under 60 PSI. I think that the bypass valve is costing me some pressure especially at idle, and I'd like to remove it. Has anyone ever done so, and if you have, what do I need to do? The Service manual is quite vague about the procedure, so any guidance anyone can offer will be greatly appreciated.