there are a few pads that I could recommend, but harder rubber is generally less responsive, softer rubber is generally more responsive. duncan uses pretty soft pads, which i personally love.
hkmt has some dark colored, and purposefully hard response pads that yye has at the store here. there are two types, and one is in stock currently.
but i’d really recommend looking into permatex ultra-grey for snag free response, theres a whole thread here devoted to its awesomeness.