Guys I need some words of advice.. My DS-1 Ultra just doesn't cut it for palm muted heavy metal riffs, what can I do? There just isn't enough saturation, is that the word? Will a booster before my DS-1 help? Another thing is that it doesn't sustain very well while i'm doing repetive hammer-ons and pull-offs like 5h7p5h7p5 etc. Although I have better sustain when I use my FX100 in front of the DS-1 with a little gain, but it makes the sound too noisy for anything else. These are the cases of me needing more gain right?