One way I've used the amp grinder, is using the clean blend to first set the foundation, then slowing dial in the dirt side for my mids/highs.
I’ve recently been exploring the use of “clippers” in place of limiters to manage transients with short but high peaks. Stuff like kicks and snares can be clipped with relatively little coloration or noticeable distortion. It’s got me listening for different things and in some ways the Rat/Grinder set to light clipping reminds me of what I’m getting from the Ableton clipper effect. I need to record some audio to validate, but I suspect the Grinder can get me what I’m after. The trick will be setting the clean blend and watching the dynamics that it allows through.