Yeah, I meant from an audience perspective that it would seem weird to switch instruments mid-song, not that it wasn't possible (heck, some people even play two instruments at the same time in a song).

The only clean boost I know of is the Fulltone Fat-Boost ($179 USD):


I have read a lot about making your own clean boost, but this is the only commercially available one I've found so far.

Maybe your LP just needs a new pickup? What kind of amp are you using? It sounds to me to be an amp problem if you're getting thin tone from an LP... the whole concept of an LP is thick tone. Maybe you have a phase problem? How old is the guitar?

Let us know, so we can help!