i also have a leaven k620 and i modded it with the following: Holee Mod Lube Stabs with Permatex Clipped Uneven Feet of the Stabs Changed Switches to Gateron Pro Reds Changed from ABS to PBT Keycaps It sounds a whole lot better than its stock... almost sounds as good as my steelseries apex pro and cougar attack x3
DONT BUY THIS BRAND…Meletrix is a scam company. I order mine 2 weeks ago they were ignoring my emails and not they say that what I payed and order (special order that was available on the website for weeks) after multiple emails they finally answer saying that was out of stock and they will not be able to deliver it… ridiculous company and they just informed me because I sent multiple emails…