September callup would mean no risk of burning an option. July/August callup would keep that risk to a minimum. Early May callup means we've got an entire season of worrying what Lou will do with him. Early May callup after getting swept by the Pirates moving well under .500 and 5 games out of 1st puts a lot of expectation on him to be the savior. If he's handled properly, though, he could help turn this team around if he hits well. My expectations aren't real high for this year, but if he's ready to contribute – which, while opinions are split on whether he should have been called up, most seem to feel he can produce at this level – then this speeds up his development. I agree there's risk involved in this move, but I don't agree with assuming awful handling any more than I agree with assuming great handling. The move in and of itself is fine to me. Now it's important that Lou uses Starlin well. We'll have to wait and see if he does, though. Well I just think that's naive on your part. The Cubs suck at this. Why wouldn't you assume poor handling? Well based on that there is not going to ever be a good time to bring up Castro. We got one with Soto two years ago, getting another hitting prospect within 10 years is going to be asking a lot.