Edward is a very good bass. Is this old? how much is it? I guess your bass and these three pedals are almost close to 10 thousand, right TREX is a good thing, but the brand represented by Zhanwei Company is too expensive in China. Look at this link, it should be an open-air website in Japan. If the landlord is in Japan, there is too much choice. Fleas generally use stingrays, modulus and the like, and Zhe also has a signature ESP, which is very good. And of course, the Edward series. If you look at your style, this one is not recommended. Try not to change the piano, because it's hard to say what the effect will be. Since the original factory has its reason. If you buy it, buy a stingray or a Strindbelt file, which has a wider adjustment range, because the piano itself has a built-in front circuit. Leave me a message if you have any questions. Japan's second-hand market is still very strong.