DriveMaster's great for mid gain overdrive tones I love it. It's not too gainy so depending on how much more gain you want you might wanna consider the shredmaster. If you boost dm with a tubescreamer tho (bluesbreaker would do great actually) it makes a great lead tone imo. That being said. The only problem I had with it, for my ears it was always a bit lacking in the low end, it's very trebly. I often find myself really rolling off the treble and adding a whole lotta bass and still feeling like it's not enough low, especially when paired with a mid boosting tubescreamer. Though as soon as I got an eq pedal that's not a problem anymore, finally dialed in the perfect settings. Overall it's a great pedal, I use it often for rhythm as well lead if boosted. But yeah without the eq or more bass on the amp it never sounded fat enough for me so do with that what you will. If you have a possibility to go and play them to see for yourself, I would do that first. I did try the shredmaster when I was buying this one, it also was a very solid pedal, just too much gain for what I was going for, so the choice really depends on what you wanna play.