DS was pretty similar. He was always in the top percentiles for height but only 50 percentile for weight at birth which quickly went up to match his height. Sounds like he is going well.
I had a scare once when the MCHN took DS' measurements at 6 months. All was good until they measured his head and it was waaaaay off they charts. They shot concerned looks at each other and measured again, then again. All the while trying to act like nothing was wrong making it really obvious something was. Finally I checked the charts and saw the massive head measurements on his growth chart. OMG! Till I pointed out they were marking him on the 6 week chart not the 6 months chart. Phew!