I recently got a pot of this grease for my Bach and Schilke trumpets. It's the usual quality product that you would expect from a top manufacturer. The grease allows fluid movement of the slides without the slippy feeling you'd get with using valve oil!
This is the best grease I have found for the main tuning slide. It is very smooth and allows for very fine adjustments. I did not find it as good for the third and first valve slides as it does resist fast movement so rapid tuning adjustment whilst playing was not easy.
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