My original plan was to copy another member's steps, with a set of stairs coming off the ledge in either direction. We, again, did not end up doing that as it too up too much of the width of the pool. My depth profile is similar to yours, 3.5/5.5/4- there didn't seem to be an issue with this.
Another point, I wish I had gone with 4/7/4. The kids spend all their time jumping in and getting out to jump back in. My depth is NOT going to be good for that once they get a little older. Right now they are all 6 and under and we still have to herd them toward the middle for jumping. Even jumping in feet first in too shallow water can cause serious injury and paralysis. Just FYI.