OP again--Thanks everyone. I think we're going to give it a shot for a bit and reevaluate to see if we are seeing tangible evidence of progress. This OT is excellent, so if it will help I'm sure we'll find out soon enough. Even though it's a lot, in many ways just focusing on therapy feels so much easier since up until a few weeks back we've been in a constant whirlwind of medical appointments seeing so many specialists and had a few surgeries to contend with. We have finally started moving beyond that and can just focus our efforts on therapy. By sprint versus marathon, the reason I am unsure is because we see so much progress once we focus on the therapy, so it's entirely possible ds will catch up, especially with PT, though it's more likely that we will need to keep up some therapies. Once he's walking we will drop PT to once per week which will feel easier. My husband and I work from home quite a bit, so that helps a lot with schedules.