I always pitch from lower OG to a higher OG because the yeast can be a bit stressed out from higher OG beers. With that said, it might not make that much of a difference. A buddy of mine made a Pale ale with a 1st and a 10th generation 1056 and we could not tell the difference between the two. The 10th generation yeast was used for low and high gravity beers in no particular order. Maybe other yeast strains would be more susceptible for differences.