Ok, here goes. I bought me a new Jupiter trumpet(dont be laughin!) 3 years ago, and 2 years ago, I switched to Ultra Pure valve oil. My valves were gliding right along, doing fine, and now, no matter what I do, they stick!!! And drag so bad, I dont even want to play it!! I soaked it in the tub,cleaned it meticuously, scrubbed the valve casing with Dawn,soaked the valves in Dawn/water,rinsed everything well,oiled each valve with 4-5 drops, and still STICKING!!! Talk about frustrating...at least I have my beat-up old Getzen Super Deluxe to fall back on!! I just dont get it.....great valve action for SO long, and now, nothing I do is helping. I know the horn hasnt been damaged, and I def dont use a goruilla grip around the valve casings.....Im so mad at this problem! I want to be able to play it out, but Im so in fear of a valve sticking during mid-solo, that I just wanna leave it home!!! Please, any advice will be so appreciated!!