Thanks to all who reponded to this thread and gave very helpful input!
Today while I waited for my daughter to buy some sewing supplies in a shopping center I wandered down to a country western store. I walked in to look at their boot cleaning and leather cleaning supplies. While looking around I found a little plastic bag with some leather care treatment in a small sample type tube. I took it up to the cashier and she said it was not for sale but belonged in a box of Lucchese boots that were for sale. Apparently, Lucchese out of El Paso, TX makes very fine and very well thought of high quality cowboy boots. I asked her if I could buy the sample tube thinking that maybe this would be worth trying on my holster leather. She said I could have it no charge so I thanked her and headed home after retrieving my daughter.
To make a long story short, I tried this 1/3 Fl ounce tube on the holster mentioned in my first post. WOW, this stuff works like magic! It may be similar to the Connolly product that Albert mentions in his post. Anyway, the product is called BICK 4. here is their web site for anyone interested
www.bickmore.com/bickmore/home/
It is a very smooth and rich looking off white cream that applies very nice and evenly. You let it dry and it buffs to that semi glossy sheen that I was looking for without ANY discoloration or darkening. I have found a store here in Las Vegas that offers this product for sale and I will get some more tomorrow and do some further experimenting and report back.
Thanks again to all of you for your help!! Lloyd in HOTTER than HELL Las Vegas!