Hey everyone, again...thanks for the good thoughts and suggestions. I am going to take the horn to a local music store where they apparently have a really good horn doc. I'll see if he can help me with this. I actually have the trumpet on C.L. to try and sell as it is very aggravating to me and I feel that I have spent more than enough time and effort to correct the problem. It's funny - I can play a song or two and all seems well, then halfway through a song, a valve sticks. Usually the 2nd or 3rd. There is no indication like sluggishness etc. I just depress the valve and it stays down. I do notice that when I clean the bore and the valve (all three) that they don't go back in even fairly easily. They tend to hang up and feel very tight, even with lubrication. I also notice that they do not turn freely once in the bore, as if they are not perfectly round, but maybe somewhat egg shaped. Does this sound normal. I also have noticed that the valves (especially number 2) has a line that looks kind of etched in it, as if to show that there is a burr or something in the bore.
Again, this is rather irritating, having purchased what I figured to be a great instrument, not requiring a lot of spent time dealing with valve issues. Thanks again for your feedback.