Kell Sound The art of recording

Halfway done mixing and it's needing something in the chorus. That moment is the worst. Do you try to take what you have and shuffle it around, in the process destroying everything that you just fit together? Or do you just add in a P-Bone and flush out the chorus. I can't believe how they sound. I have added a part into a track that I am working on right now and the tone is perfect. It sounds just like a trombone, possibly a slight bit warmer, and fits perfectly into the mix. And because they are plastic they are cheap! $149 right now.