Hey, I'm finding new kind of use for my American.
After using it as dirt blended with a LS-2 I wanted to try it back as a more clean preamp.
As with the VT Bass, if put at the end of my chain it sounds nice but I noticed that if I used some kind of dirt before with a boosted signal it tend to create a blurry low end. Some might like it but regarding my personal tastes I found a lack of punch that way.
So, I put it a t the beginning of my chain with a drive setting to create just a bit of dirt while keeping a nice and focused low end (Drive between 10 and 11 with my P Bass). Then I use blended dirt after. In my case an OFD and a first try with the VT Bass blended with the LS-2.
The result is great : I can add the flavor of dirt I want, focusing them on a specific range of mids, while keeping the nice low end generated by the American.
A little bit counterintuitive, but it sounds really nice. Some kind of poor man bi-amping

The combination between the almost clean American and the Character cranked VT Bass is really interesting ! It just adds a layer of dirt at the good place while keeping all the punch in the low end.
The principle is to set the blend to keep the clean signal at the same level when the dirt is engaged and use the dirt as an added sound on this clean part.