First of all, I'm new here so greetings to you all. I've been reading posts for quite a while and have been greatly assisted by many of your thoughts and suggestions...even as I have been encouraged by the frustrations of others (knowing I'm not alone!)...and that leads me to my first question: I have a '75 vintage, Bb Silver Strad 37. As is typical, low C# and D are seriously sharp. I can't easily lip them into tune and the mechanics of using first and third slides tends to jar my embouchure and ruin my tone quality. Any suggestions for how to improve intonation on my horn? Would a trigger help me? Any other mechanical change that could be done? If not, are there any tricks to using slides more effectively? I tried a Yamaha horn and the angle of the thumb saddle/finger ring was much more ergonomic...perhaps I need to have mine re-positioned? This intonation problem is driving me whacky. I can't afford a new horn right now. Thanks for any help!