| I am not sure what you mean by heavy sludge sound, and strings are a very personal thing, so it's hard to say.
A thicker string will increase the fullness of the sound, but I personally go by feel more than sound in terms of the gauge I choose, since nothing will sound good if they strings prohibit me from playing well. You will need to experiment to find a balance that works for you.
I have heard guys who play metal that use D'Addario and GHS Boomers, and though I use Roto's myself, I think the D'Addario XL is a fantastic string for the price (one of the cheapest out there and not bad at all- nice and bright for most metal music). You might be a lot closer to having what you need than you realize. |