Im looking to compile a list of great 3rd party companies, that manufacture parts, accessories, etc... To use as a reference when looking to buy any thing for my basses. So if you've had a good experience with a certain 3rd party company or know they have a reputation for quality feel free to share! My personal example would be: DR's Line of "DDT" or "Drop Down Tuning" Strings. They are a must have for any bassist playing in drop tunings. The moment you tune them they lock in and stay in tune. This is my personal experience, with four different sets and gauges of strings from the DDT line.