I've been using the #1 on my bass trombone valves for a couple of months and it seems to work very well. I don't notice any of the odor once I put it on the horn. Haven't noticed any residue or gunk. I did flush the valves very thoroughly before I switched over. It's possible that any odd residue or coating MIGHT result from a mixture of one oil with another (typically synthetic, from what I see reported). On the other hand, I'm often not careful with this and have never actually seen it myself. But before giving up on an oil, I'd THOROUGHLY clean the valves and tubing to avoid any cross-contamination.
Gary Merrill
Wessex EEb Bass tuba (DW 3XL or 2XL)
Mack Brass Compensating Euph (DE N106, Euph J, J9 euph)
Amati Oval Euph (DE 104, Euph J, J6 euph)
1924 Buescher 3-valve Eb tuba (with std US receiver), Kelly 25
Schiller American Heritage 7B clone bass trombone (DE LB K/K10/112/14 Lexan, Brass Ark MV50R)
1947 Olds "Standard" trombone (Olds #3)