The only down side to this is that they're two different beers. So, it depends on how much and how it will affect color, flavor, etc. Otherwise, I think it would be a good idea if you can spare the beer. Did you do a D-rest on the Pils? If not, and since you pitched warm, I'd do it (krausen beer) if you're thinking about it. It might clean things up a bit and may also help get a slightly better attenuation.