what is the best slide treatment out there? i prefer Slide O Mix to anything else i've used. anyone got anything better?

I use slide-o-mix ALL THE TIME. I think its the best.

John Upchurch (AKA The Slide Dr.) says that it builds up in the slide too much but I haven't expirienced that enough to make me switch. However....After applying the small bottle to the slide, I like to wipe it clean before adding the large bottle. I think that without wiping down the slide inbetween bottles, the slide can become kinda gummy. But as far as slide treatments go, Slide-O-Mix > anything else.

(i think I heard it could also depend on your type of horn...)

well i have been using the two bottles of slide o mix for the past 3 years i have played trombone. i recently came across a thing on wwbw.com that i'd like to try. its slide o mix but its both bottles in one.

This website will answer all of your slide-related questions:

www.slidedr.com

my teacher has had me using Ponds Cold Cream, its actually a make up remover.
It works great! And you get alot for really cheap!

Yamaha has been making a new slide oil for a couple of years now, it's very similar to slide'O'mix, but it's in a single bottle and costs a fraction of the price (5 to 7$ depending on where you buy it).

By the way, when using slide'o'mix you're not supposed to use both bottles on the same area of the slide (small bottle goes on stockings, large bottle drops from the top of the slide)