I have had the Distortion in my maple body Jackson Dinky. It replaced a Bill Lawrence pup which was too brite. The distortion was quite an improvement but perhaps due to the maple not yet what I was looking for. Very tight bottom, indeed, but too thin sounding for leads (in that particular guitar). Anyway, I swapped it with the JB4 in my ESP Horizon (neck-through). The JB (which originally in my Jackson RR1) sounds much warmer in the Dinky than in the ESP. Also surprisingly, the Distortion gives nice cleans in the ESP, but still doesn't give the sound I'm looking for. I'm thinking of replacing both the JB4 and the Distortion by a Custom Custom (I have a Custom in combination with a Jazz-neck humbucker in my RR1, which is currently my favourite combination for metal). As of now I don't know if I'm going to sell the JB4 and Distortion yet but I will replace them asap and try some other combinations. They're not my favourite pups but maybe I'll find other guitars which'll do them right...