I found an old 2008 Blog from this website written by Dave Werden called Trigger Lubricant, but it only addressed the mechanism lubrication.
Referring to that Blog with photos: I was hoping you would address the lubricant used for the trigger valve inserts into the horn. To be clear in the second photo, where the female black ring tube is being inserted into the male tube. I was about to use Hetman Tuning Slide Grease 8, that I use on my other tuning slides, but stopped to ask the question about whether I should use a different lubricant for the trigger slides?